Problema Solution
in triangle abc the size of angle b is 3times the size of angle a and the size of angle c is 2 less than 6times the size of angle a find the size of angle a what is angle a size?
Answer provided by our tutors
let angle a = x
angle b = 3x
angle c = 6x-2
a+b+c=180
x+3x+6x-2=180
10x=182
x=18.2
angle a = 18.2