Question

The measure of one angle of a triangle is 40. The measure of the other two angles are in a ratio of 3:4

Answer 1

180-40=140
140/7=20
3:4 *20
60:80
so the other 2 angles are 60 and 80

Answer 2

total addition of angles = 180

so the remaining two angles= 180-40= 140

now let the common ratio =x

so 3x+4x = 140
7x=140

x=20

so angles are 3x=3*20= 60 and 4x= 4*20 = 80