Question

If the angles of a triangle are in the ratio 2:3:7 then the largest angle is

Answer 1

2x+3x+7x=180
12x=180
x=180/12
x=15
7x=7×15
=105
3x=3×15=45
2x=2×15=30
the largest angle=105

Answer 2

third angle105 is the largest