Question

Find the value of x. Round your answer to the nearest tenth.
x
10
Blank 1:

Answer 1

12.2

Explanation:

By Pythagoras theorem:

`{x}^(2) = {10}^(2) + {7}^(2) \\ {x}^(2) = 100 + 49 \\ {x}^(2) = 149 \\ x = √(149) \\ x = 12.2065556 \\ x \approx \: 12.2`