Question

Find the length of the diagonal of a rectangle whose sides are 21 cm and 20 cm.

Answer 1

Answer:

Step-by-step explanation

by pythagoras theorem

(hyp)² = (side1)² + (side2)2

(hyp)² = (20)² + (21)²

(hyp)² = 400 + 441

(hyp)² = 841

(hyp) = 29 ( square root of 841 )

therefore, the diagonal of the rectangle is 29.

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