Question

plzzz answere me .................​

Answer 1

Pythagoras Theorem

We know that, in a right angled triangle, the square of hypotenuse is equal to the sum of squares of the other two sides.

${h}^{2} = {p}^{2} + {b}^{2}$

Where h = hypotenuse

p = perpendicular

b = base

So, by applying Pythagoras Theorem we can easily find sides of a right angled triangle.

Coming to the question :

Given sides :- 15 cm and 20 cm

Applying Pythagoras Theorem , We get

${h}^{2} = {20}^{2} + {15}^{2} \\ \\ = = > {h}^{2} = 400 + 225 \\ \\ = = > h = \sqrt{625} = 25 \: cm$

Hence , answer is 25 cm

Hope that helps !