Question

find the length of diagnol of rectangle whose sides are 15 cm and 8 cm​

Answer 1

Answer:

To find the diagonal let

side a = 15cm

side b=. 8cm

side c= x

In the attachment you will see that the sides and diagonal made a right angle triangle so...

to find diagonal

we use Pythagores theorem

diagonal² = side a² + side b²

x² = 15²+8²

x²= 225+64

x²= 289

x²= 17²

so the length of diagonal is 17cm

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