Question

If the three angles at a point are in the ratio 1:4:7, find the value of each angle

Answer 1

let the each angle be x

then,

x+4x+7x+x = 180°

13x =180°

x=180÷13

= 13.8461.....

Answer 2

Answer:

1:4:7

let is take x as each angle

1x+4x+7x=180..............(Angle sum property of triangle)

12x =180

x=12/180

x= 15

Angles =1×15=15°

=4×15=66°

=7×15= 105°

Hope, You understand my explanation