Question

Three angles of a quadrilateral measure 36°, 60° and 156° Find the measure of
the fourth angle of the quadrilateral.​

Answer 1

Answer:

X = 108

Step-by-step explanation:

All angles of a quadrilateral measure up to 360

let last angle be x

Therefore, 36 + 60 + 156 + X = 360

X = 360 - 156 - 60 - 36

X = 108

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Answer 2

Answer:

sum of all angles of a quadrilateral is 360°

let the fourth angle be x

according to the question

36+60+156+x= 360

x= 360-252=108

x=108

is the fourth angle