Question

ABC is a right angled triangle with AB = 17cm, AC = 15cm and <C =90°.Find BC?​

Answer 1

Given:- ABC is a right angled triangle.

AB =17cm

AC = 15 cm

<C=90°

$\bold{To~find:-} BC$

$\bold{Solution:-} In ~triangle ~ABC~\\ \\AB ~ is ~Hypotenuse \\ \\ AC~ be~perpendicular \\ \\ BC~be~base \\ \\ \bold {By~ Pythagoras~theorem} \\ \\ H²=P²+B² \\ \\ (17)²=(15)²+(BC)² \\ \\ (17)²-(15)²=(BC)² \\ \\ 289-225 =(BC)² \\ \\ 64 =(BC)² BC=√64 \\ \\ BC=8cm$