Question

A movie screen is 15 meters by 8 meters. What is the length of the diagonal of the movie screen? *

Answer 1

17,

Diagonal= sqrt w^2+l^2

Answer 2

Answer: 
17 m

Explanation: 
Use the pythagorean theorem to find the length of the hypotenuse: 
Pythagorean theorem: 
$a^{2} + b^{2} = c^{2}$ 
a = 15 and b = 8 
$15^{2} + 8^{2} = c^{2}$ 
Solve for c: 
$15^{2} + 8^{2} = c^{2}$
225 + 65 = $c^{2}$ 
289 = $c^{2}$
$\sqrt{289}$ = c 
17 = c