Question

1. The measure of three angles of a quadrilateral
is 30, 70, 100. Find out the measurement of
fourth angle? .
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Answer 1

Answer:

160

Step-by-step explanation:

because sum of all angles of quadrilateral is 360 degree .

Let fourth angle be a

30+70+100+a=360

200 + a = 360

a = 360 -200

a = 160