Question

Two angles of a quadrilateral are equal and the third angle is 130°. if the forth angle is less than each of the equal angles by 10°, find the remaining angles of the quadrilaterals.
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Answer 1

Answer:

hope this helps you

Answer 2

Answer:

Let the equal angles be x

Therefore fourth angle be x - 10

ATQ-

x + x + 130 + x - 10 = 360( sum of angles of quadrilateral is 360 degree )

3x + 120 = 360

3x = 360 - 120

3x = 240

x = 240÷3

x = 80

therefore angle 1 and 2 = 80 degree

and angle fourth = 80 - 10 = 70 degree