Question

Can someone
help with this

Answer 1

Explanation:

let angles of a triangle a=86

b= 180-3z , c= 180-4z

a+b+c = 180 {angle sum property}

86 +180+180-3z-4z=180

446 -7z = 180

-7z = -266

`z = ( - 266)/( - 7) = 38`

so other angle are

3z = 3 x 38 = 114

4z = 4 x 38 = 152