Question

If four angles of a quadrilateral are in the ratio of 1 : 2 : 4 : 5 . Find the angle .​

Answer 1

Answer:

LET THE COMMON NUMBER BE X

1X+2X+4X+5X=360°. (SUM OF ALL SIDES OF QUADRILATERAL)

12X= 360°

X=360°÷12

X=30

NOW

1X=1×30=30°

2X=2×30=60°

4X=4×30=120°

5X=5×30=150°

Answer 2

it's easy

1x = 1 x 30 = 30

2x = 2 x 30 = 60

4x = 4 x 30 = 120

5x = 5 x 30 = 150