Question

Find the value of x. ​

Answer 1

x = 58.5°

Explanation:

Given is an irregular pentagon.

Sum of all the interior angles of an regular or irregular pentagon is always 540°.

`73° + 143° + 90° + 3x + x = 540°\\</p><p>306° + 4x = 540°\\</p><p>4x = 540° - 306°\\</p><p>4x = 234°\\</p><p></p><p>x = (234 \degree)/(4) \\ x = 58.5 \degree`