Question

help me out you guys I suck at maths

Answer 1

Sum of angles of a quadrilateral=360°
Let fourth angle be x
75+75+75+x=360
x=360-225=135
the fourth angle measures 135°


hope this helps you
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Answer 2

Hey friend, here is your answer.

Three angles of a quadrilateral are acute,

each measuring 75°

The sum of angles of a quadrilateral is 360°

Therefore, let the fourth angle be x

So, 75° +75° +75° + x = 360°

x = 360° - 75° × 3

x = 360° - 225°

x = 135°

Hoping that it will help you.