Question

3 angles which add up to 180 degree are in the ration 2: 3: 7. find them

Answer 1

sum of the angles = 180 degrees
2x + 3x + 4x = 180 degrees
9x = 180 degrees
x. = 180 / 9
x. = 20 degrees

2x = 2 multiplied by 20 = 40 degrees
3x = 3 multiplied by 20 = 60 degrees
4x = 4 multiplied by 20 = 80 degrees

Answer 2

Let the 3 angles =2x, 3x and 7x
Sum if all the angles of a triangle=180°
.: 2x+3x+7x=180°
(2+3+7)x=180°
12x=180
.: x=180/12
=12
.: the angles are:-
1st angle=2*x=24
2nd angle=3*x=36
3rd angle=7*x=84
Hope u understood.