Question

find the length of the unknown side of the following right angled triangle

Answer 1

in right angled triangle X YZ we know that angle Y IS 90 degrees
according to Pythagoras theorem
=x y whole square + Y Z whole square equals to x z whole square
=15 square + Y Z Square equals to 25 square
=Y Z Square equals to 6 25 - 225
=Y Z Square equals to 400
=
y z equals to 20 cm
:)

Answer 2

In Triangle XYZ , Angle Y = 90°

Therefore By Pythagoras Theorem

XZ² = YZ² + XY²

(25)² = (x)² + (15)²

625 = x² + 225

x² = 625 - 225 = 400

x = 20

The length of unknown side is 20 cm

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