Question

What is the value of x? Round to the nearest tenth.

Answer 1

Pythagoras states that x²+12²=24². So x=√(576-144)≈20.8

Answer 2

x^2 = 24^2 - 12^2
x^2 = 576 - 144
x^2 = 432
x = 12 square root 3
or
x = 20.78

hope that helps