Counting Figures — Triangles, Squares, Rectangles
Counting Figures — triangle, square, rectangle ginna
title
Counting Figures — Triangles, Squares, Rectangles
- Embedded & Counting Figures
- Counting Figures — Triangles, Squares, Rectangles
नमस्ते दोस्तों! MeraExam में आपका स्वागत है। आज का topic है — Counting Figures — triangle, square, rectangle ginna। मैं promise करती हूँ, आज के बाद ये topic आपको आसान लगेगा। शुरू करें?
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Interactive — learn by doing. Drag, tap and explore to build the intuition.
Count every rectangle in a grid
A rectangle is fixed by choosing 2 of the vertical lines and 2 of the horizontal lines — so multiply the two choices.
[3(3+1)/2] × [2(2+1)/2]
18 rectangles
8 of them are squares
every square is also a rectangle
💡 For a chessboard (8×8): 36 × 36 = 1296 rectangles, of which 204 are squares.