Question

The hypotenuse of a right angled triangle is 25cm. If one of the remaining two sides is 20cm, find the length of its third side.
​

Answer 1

Answer:

15 cm

Step-by-step explanation:

According to pythagoras theorem,

In a right angle triangle,

$hypotenuse^{2} = sum of squares of other two sides$

Let the length of third side = x cm

$So, 25^{2} = x^{2}+20^{2} \\625 = x^{2} + 400\\or, x^{2} = 625 - 400 = 225\\so, x^{2} = 225 \\or, x = \sqrt{225} = 15$

So, third side = 15 cm

Thanks

Please mark this as brainliest.