Q2 of 45 Page 43

Solve the following examples.

Find the length of the hypotenuse of a right angled triangle if remaining sides are 9 cm and 12 cm.


In a right-angled triangle


By Pythagoras theorem


(Hypotenuse)2 = (base)2 + (Perpendicular)2


Given,


Other sides are 9 cm and 12 cm


⇒ Hypotenuse2 = 92 + 122


⇒ Hypotenuse2 = 81 + 144


⇒ Hypotenuse2 = 225


⇒ Hypotenuse = 15 cm


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