Question

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

Answer 1

Answer:

let,1st angle be x

2nd angle be 4x 3rd angle be 7x

so,x+4x+7x=180(forming a straight line)

12x=180

x=180÷12

x=15

therefore, x=15 degrees

4x=4*15=60 degrees

7x=7*15=105 degrees