Question

The angles of a teiangle are x,x+15,2x-15. find the smallest angle of the triangle

Answer 1

Answer:

let a be angle x

b angle x+15

c angle 2x-15

angles a+b+c= 180° ( interior angles theorem)

x+x+15+2x-15=180°

4x=180

x=180/4

X=45 °

x+15 =45+15= 60°

2x-15= 2×45-15

90-15 =75