Question

Length and breadth of a rectangle are 8 cm and 6 cm

Q: Answer-Length and breadth of a rectangle are 8 cm and 6 cm respectively. The rectangle is cut on its four v...

Let the side of octagon is x Apply PGT x2 6 ndash x 22 8 ndash x 22 x2 36 x2 ndash 12x 64 x2 ndash 16x 4 4x2 100 2x2 ndash 28x 2x2 28x 100 0 x2 14x 50 0 X 3radic11 ndash 7 cm

respectively. The rectangle is cut on its four vertices such that the resulting figure is a regular octagon. What is the side (in cm) of the octagon?

A 3(√11) – 7

B 5(√13) – 8

C 4(√7) – 11

D 6(√11) – 9

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Length and breadth of a rectangle are 8 cm and 6 cm

Solution