Question

one angle of a triangle is equal to the sum of the other two if the ratio of the other two angle is 7:8, find the angle of the triangle

Answer 1

hope u got it and I hope my hand writing are not troubling you

Answer 2

First angle =7x
Second angle =8x
Give that third angle equal to sim of the this two angles :.7x+8x=third angle
:.7x+8x+15x=180
:.30x =180
:.x=6
Then angles are
7x=7*6=42
8x=8*6=48
15x=15*6=90
(:.42+48+90=180)