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Shapes and Mirror Images

Lesson 91 of 113

1. Ye topic hai kya?

Yahan picture: vertical mirror, rotate, kitne square/triangle, agla figure. Paani wala image Water image. Fold-ched Paper folding.

Coding se farq

Coding: CAT → DBU, letters. Yahan arrow, L-shape, clock-hand, folded paper. Rule geometry ka hai.

Yahan kya nahi

Ghadi ka time-angle Clocks alag topic. Dice/cube alag. Yahan figure ulti, ghumi, chhipi, gini.

2. Paper pe dimag kaise chale

Pehle pata karo sawaal kaun sa kaam maangta hai — teeno milake mat karo:
1) Mirror (vertical glass, bagal mein) — sirf left ↔ right. Upar-neeche same.
2) Water (horizontal glass, figure ke neeche) — sirf upar ↔ neeche. Left-right same.
3) Rotate — poori figure ghumti hai (90 / 180 / 270). Mirror nahi.

Same L teeno tarah. Foot = chhoti line jo ground pe hai.

Original
Mirror (LR)
Water (UD)
Rotate 180
Sabse badi galati: 180° ghumana = mirror samajhna. 180 mein left-right aur upar-neeche dono palat-te hain. Mirror mein sirf left-right.

Option check: ek nishaan

3. Letters aur numbers

Vertical glass (word ke right): har letter khud ulta, aur order bhi palat — last letter image mein pehle dikhega.

KaamJo same dikhte (standard exam font)
Vertical mirrorA H I M O T U V W X Y · numbers 0, 8 (1 kabhi-kabhi)
Water imageB C D E H I K O X · 0, 8

P, B, R, S, N, 2, 3, 4, 5, 6, 7, 9 — mirror mein “letter” nahi rehte, ulti shape ban-ti hai. Option mein wahi ulti shape tick.

Basic · letter

Q1. Vertical mirror mein kaun sa letter same dikhega?

(A) P   (B) B   (C) A   (D) S

Solution shuru

  1. Step 1

    P, B, S ke bumps ek taraf hain — palat ke doosri taraf. A beech se symmetric.

Final answer — yahan khatam(C) A
Basic · word

Q2. Word TOP ke right mein vertical glass. Mirror image ka order kya hoga (har letter ulta, last pehle)?

Solution shuru

  1. Step 1 — order

    Original left→right T, O, P. Glass right. Image mein pehle P-wali shape, phir O, phir T.

  2. Step 2 — letters

    O aur T same. P ulta (open muh left).

Final answer — yahan khatamulta-P, phir O, phir T

4. Figure ka vertical mirror

Glass figure ke right (exam default, unless left likha ho). Har point ki left-right distance palat, upar-neeche same.

Figure
Mirror

Bada circle left tha → image mein right. Chhota gold dot upar hi (height same). Teer right-pointing tha → ab left-pointing. Agar 180 hota to gold dot neeche chala jata.

Basic · choose

Q3. Original ka vertical mirror kaun sa hai?

Original
(A) water
(B) mirror
(C) 180°
(D) same

Solution shuru

  1. Step 1 — nishaan

    Gold dot upar + left. Mirror: upar same, left→right. Foot ab left ko.

  2. Step 2 — kaato

    (A) dot neeche — water. (C) dot neeche-right — 180. (D) original. (B) dot upar-right, L palat.

Final answer — yahan khatam(B)

5. Water vs mirror — ek line, alag page

Vertical mirror = left↔right, upar-neeche same. Water = upar↔neeche, left-right same. 180 rotate = dono palat. Poora water drill: Water image.

Medium · figure mirror

Q4. Original: teer right, gold square upar-left. Vertical mirror ke baad?

Solution shuru

  1. Step 1

    Left↔right. Teer left. Square upar-right (height same). Water hota to square neeche-left, teer right hi. Fold-ched nahi.

Final answer — yahan khatamTeer left; square upar-right

6. Rotate — ghumana

Paper ko pin se pakad ke ghumao. Clockwise (CW) ya anti-clockwise (ACW) sawaal likhega.

90° CW = har point right ko 1/4 ghoom. Jo upar tha woh right. Jo right tha woh neeche.
180° = ulta sir — upar↔neeche aur left↔right dono.
90° ACW = upar wala left.
Basic · 90° CW

Q5. Teer upar ko hai. 90° clockwise ke baad teer kahan?

Solution shuru

  1. Step 1

    Clock ki tarah: 12 se 3. Upar → right.

Final answer — yahan khatamRight (east)
Medium · 180 vs mirror

Q6. Original: gold dot upar-left. 180° rotate ke baad dot kahan? Vertical mirror ke baad kahan?

Solution shuru

  1. 180°

    Upar-left → neeche-right.

  2. Mirror

    Upar same, left→right ⇒ upar-right.

Final answer — yahan khatam180: neeche-right. Mirror: upar-right. Alag options.

7. Shapes gino

Pehle sabse chhote, phir 2-jo-mil-ke, phir sabse bada. Double-count mat karo — ek size ek pass.

Squares — 2×2 grid

1×1: 4. 2×2: 1. Total 5.

Triangles — square + dono diagonal

4 chhote (centre se). 4 jo do-do chhote jod ke. Total 8.

Basic · squares

Q7. 2×2 wale grid (upar) mein kitne squares?

Solution shuru

  1. Step 1

    Chhote 4. Poora bada 1. 4+1=5. “Sirf chhote” mat gino.

Final answer — yahan khatam5

8. Agli figure / odd figure

Figure series = number series jaisa, lekin rule ghumna, lines badhna, ya dot move. Odd figure = 3 same rule, 1 toot-ta. Embedded + lambi series: Embedded / figure series.

Medium · series

Q8. Har step pe dot 90° clockwise. Agli?

1
2
3
?

Solution shuru

  1. Step 1

    Upar → right → neeche → agla left.

Final answer — yahan khatamDot left (west) side par
Basic · odd figure

Q9. Kaun si figure odd hai?

(A)
(B)
(C)
(D)

Solution shuru

  1. Step 1

    A, B, D: dot left. C: dot right. Ek rule toot-ta — C.

Final answer — yahan khatam(C)

9. Fold-punch yahan nahi

Kagaz fold + ched = Paper folding / cutting. Mirror line wahan. Ghadi ka time-mirror Clocks.

Medium · palat letter

Q10. Vertical mirror ke baad kaun sa letter palat jayega (same nahi rahega)? (A) H   (B) A   (C) M   (D) F

Solution shuru

  1. Step 1

    H, A, M dono taraf barabar. F ke bars ek taraf — mirror mein left ko. (D) F. Q1 “same kaun” alag sawaal.

Final answer — yahan khatam(D) F

10. Pro checklist

  1. Sawaal mirror hai ya rotate? Water alag page. Fold alag page.
  2. Ek nishaan (dot/teer) ki height aur side check.
  3. Word: order palat + har letter ulta.
  4. Ginti: size-wise pass, bada figure bhoolna mat.
  5. Fold-ched Paper folding pe, yahan nahi.

11. Practice

Pehle khud socho, phir neeche solution kholo. Theory ke Q1–Q10 yahan nahi dohraaye.

Basic

Practice 1. Vertical mirror mein kaun same? (A) N (B) H (C) J (D) L

Solution shuru

  1. Step 1

    H beech se symmetric. N, J, L palat-te hain.

Final answer — yahan khatam(B) H
Basic

Practice 2. VIM ka vertical mirror (glass right). Image mein pehla letter kaun si shape?

Solution shuru

  1. Step 1

    Order palat: M, I, V. Pehli shape = M (M same rehta). I, V bhi same. Poori image MIV jaisi dikhegi.

Final answer — yahan khatamM (word image: MIV)
Medium

Practice 3. Original: bada circle left, uske upar chhota gold dot, teer right ko. Vertical mirror?

(A) original
(B) mirror
(C) water
(D) 180°

Solution shuru

  1. Step 1 — nishaan

    Gold dot upar rehna chahiye, left→right. Teer left ko. Circle right.

  2. Step 2

    (A) original. (C) dot neeche, circle left — water. (D) dot neeche-right — 180. (B) dot upar-right, teer left.

Final answer — yahan khatam(B)
Medium

Practice 4. Triangle ka point upar, gold dot upar-left. Vertical mirror?

Solution shuru

  1. Step 1

    Point upar hi (height same). Dot upar-right. Water hota to point neeche, dot neeche-left — alag page.

Final answer — yahan khatamPoint upar; dot upar-right
Pro

Practice 5. Options mein se kaun sa original ka mirror nahi ho sakta, agar original mein ek nishaan sirf upar-left hai?

(A) nishaan upar-right   (B) nishaan neeche-right   (C) dono ho sakte alag-alag kaam se

Solution shuru

  1. Step 1

    Vertical mirror: upar-left → upar-right. (A) mirror ho sakta.

  2. Step 2

    (B) neeche-right = 180 rotate, mirror nahi. Sawaal “mirror nahi” ⇒ (B).

Final answer — yahan khatam(B)
Medium

Practice 6. Square + dono diagonals. Kitne triangles?

Solution shuru

  1. Step 1

    4 chhote (centre se har side). 4 bade (do chhote jod ke, har vertex chhod ke opposite diagonal). 4+4=8.

Final answer — yahan khatam8
Medium

Practice 7. Figure-1: 1 khadi line. Figure-2: 2. Figure-3: 3. Agli kitni lines? (Rule: har baar +1)

Solution shuru

  1. Step 1

    +1, +1. Agli 4. Pehle check: kahi ×2 to nahi — 1,2,3 sequence +1 hi.

Final answer — yahan khatam4 lines
Basic

Practice 8. Teen figures mein teer clockwise ghoom raha 90° har step, chauthi ruk kar ulti. Odd kaun si — pehli teen mein se last, ya chauthi?

Solution shuru

  1. Step 1

    Jo rule 3 follow karein, jo 4th toote — 4th odd. “Ulti” = ACW ya 180, series se bahar.

Final answer — yahan khatamChauthi (jo ulti hai)
Pro

Practice 9. 3×3 grid (2 extra lines har direction, 9 chhote squares). Kitne squares kul?

Solution shuru

  1. Step 1

    1×1: 9. 2×2: 4 (positions 2×2). 3×3: 1. 9+4+1=14.

Final answer — yahan khatam14
Pro

Practice 10. Word MAP ka vertical mirror — pehla shape kaun, order?

Solution shuru

  1. Step 1 — order

    Reverse: PAM. M same, A same, P ka mirror (bars left). Fold 4-ched Paper folding pe.

Final answer — yahan khatamulta-P, phir A, phir M (word image: PAM)

12. Itna kaafi hai kya?

Agar tum:

  • mirror aur 180 alag pehchan sako; water alag page
  • word ka order palat ke letters ulta kar sako
  • squares/triangles size-wise gin sako

to JA/CA-II ke shapes / mirror / ginti / figure-series attempt ho sakte hain.

Agle topic: Clocks.

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