Calculate the 4th angle of a quadrilateral if the other sides are 56, 115 and 120.

Question

asked Sep 10, 2021 112k views

1 Answer

LaaasBIGL · Answer 1 · 2021-09-15T14:34:22+0000

Answer:

69°

Explanation:

The sum of the interior angles of a quadrilateral = 360°

Subtract the sum of the given angles from 360, that is

4 th angle = 360° - (56 + 115 + 120)° = 360° - 291° = 69°