Question

7) The angles of the quadrilateral are in AP. The largest angle is 108.
Find the remaining angle. 2 marks​

Answer 1

Answer:

Since they are in AP

angels are a+d, a , a+d

given , a+d = 108

a= 108-d. ....(i)

Sum of all angles in triangle is 180

=> a-d + a + a+d =180

=> 3a = 180

=> a = 60

from equation ( i ) we get

=> d = 108- 60

=> d= 48

so other two angels are (60-48) , 60

=> 12, 60