Question

no.19 answer please its urgent

Answer 1

hope it will help you.
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Answer 2

Let one of the side be x and the hypotenuse by y. We know that one shorter side(side other than hypotenuse) is 15cm long. Also perimeter is given to be 40cm.

So, according to the question:-

x+y+15 = 40 ⇒ x+y = 25 ⇒ x = 25-y           .............. (1)

Now, by pythagoras theorem,

x²+15² = y²

x²+225 = y²

Puting value of x in the above eq. we have,

(25-y)²+225 = y²

625+y²-50y+225 = y²

50y = 850

y = 17

Putting the value of y in eq(1) we get,

x+17 = 25

x = 8

I hope this helps.