Question

The four angle of a quadrilateral are in the ratio 3 ratio 4 ratio 5 ratio6. Find the angle.

Answer 1

let the angle be x
then
3x+4x+5x+6x = 360°
18x =360
x = 360/18
x=20
then the angles are..
3x = 3×20 = 60°ans
4x = 4×20 = 80°ans
5x = 5×30 = 100°ans
6x = 6×20 = 120°ans
~~~~~~~~~
proof sum of angles of quadrilaterals = 360°
60+ 80+ 100+ 120 = 360

Answer 2

let the angle be "X"
so,
3x+4x+5x+6x=360
18x=360
X=360÷18
X=20
now the measure of the angles are
3x=3(20)=60
4x=4(20)=80
5x=5(20)=100
6x=6(20)=120