1.

The angles of a quadrilateral are in AP,if the smallest angle is 15 degree Find the other angles.​

Answer»

Explanation:

LET these angles be A, B, C, D RESPECTIVELY..

The four angles of a quadrilateral add UPTO 360..

If one is 15 then the other three add upto 345..

Hence the average is 115 (divide 345 by 3)

So let the three angles be 115+d, 115-d, 115 and the given angle,

115-2d=15

2d=115-15

d=100/2

d=50

Hence,

d=50!

So the angles are 15,65,115, 165..

Hope it helps..

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