Question

The measure of three angles of a quadrilateral is 30˚, 70˚ and 100˚. Find out the measurement of fourth angle.​

Answer 1

Answer:

the total angle sum of a quadrilateral is 360 degrees.

therefore the total sum of the given angles  is (100+30+70) degrees = 200 degrees.

hence the fourth angle would be 360-200 = 160 degrees.

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Answer 2

Answer:

160°

Step-by-step explanation:

Sum of all angles in a quadrilateral is 360°

Therefore, 30 + 70 + 100 + x = 360

Therefore, x = 160°

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