Mathematics · Permutations and Combinations
How many rectangles and squares can be formed from a grid created by a set of 4 straight parallel lines intersecting perpendicularly with another set of 4 straight parallel lines?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 131 rectangles and 23 squares
- 214 rectangles and 36 squares
- 336 rectangles and 22 squares
- 436 rectangles (including 14 squares)✓
Correct answer
36 rectangles (including 14 squares)
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