Question

5. Three angles of a quadrilateral are 45°, 75º and
105°. Find the fourth angle.
(2)​

Answer 1

AnSwEr

Step-by-step explanation:

Let the fourth angle of a quadrilateral be x

$= > 45 + 75 + 105 + x = 360 \: \\ = > x = 360 - 225 = 135 \: degree$

Therefore the fourth angle is 135 degree

Hope it helps. Mark brainliest ✌️❤️

Answer 2

Answer:

Sum of interior angles of a quadrilateral is 360°

X° + 45° + 75° + 105° = 360°

X° = 360° - 225°

X° = 135°

Hope I was able to help you :)