Question

Three angles of a quadrilateral are in the ratio of 2:3:7 the mean of these angles is 64 degree find all four angles?

Answer 1

Answer:

Angles are = 40 , 60 , 140 , 120

Step-by-step explanation:

Let angles are A , B , C , D

A + B + C + D = 360      [ A.S.P] ---------i

Also

A + C = 180          [ SUM OPP. ANGLES  OF QUAD. ARE 180]

2x + 7x = 180

9x = 180

x = 20

A = 40

B = 60

C = 140

USE THESE ANGLES IN i

40 + 60 +140 +D=360

240 + D = 360

D = 120