Question

Find the unknow side of the right triangle 2. b=73.6 cm b= 19.0

Answer 1

Assumed 73.6cm is the hypotenuse.

$a^{2} + b^{2} = c^{2}$
$19^{2} + b^{2} = 73.6^{2}$
$b^{2}$ = $73.6^{2} -19^{2}$
$b^{2}$ = $5055.96$
$b$ = $71.1$

Assumed 73.6cm is not the hypotenuse.
$a^{2} + b^{2} = c^{2}$
$19^{2} + 73.6^{2} = c^{2}$
$c^{2}$ = $73.6^{2} +19^{2}$
$c^{2}$ = $5777.96$
$c$ = $76.0$