1.

The angles of a quadrilateral are in ap whose common difference is 10degree find the angles

Answer»

Let the first ANGLE be a

Second angle = a + 10

Third angle = a + 20

Fourth angle = a + 30

By angle sum property of QUADRILATERAL,

a + a + 10 + a +20 + a + 30 = 360

=> 4a + 60 = 360

=> 4a = 300

=> a = 75

First angle = 75°

Second angle = 85°

Third angle = 95°

Fourth angle = 105°


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