Question

bought a 45-inch television. The size of the TV is measured diagonally.
The television has a height of 27inches. What is the length of the TV?
3
MATH
A 30 in.
B
32 in.
C 36 in.
D 39 in.
45 in.
27 in.

Answer 1

Answer:

C) 36 inches

Step-by-step explanation:

Let the diagonal be the hypotenuse and use Pythagoras' Theorem:

$a^2+27^2=45^2\\a^2+729=2025\\a^2=1296\\a=36$

So, the length of the TV was 36 inches.