Question

In a triangle the measure of the second angle is twice the measure of the first angle. The third angle is equal to the sum of the other angles.

which of the following could represent the measures of the three angles.

1) x, 2x, 4x
2) x, 2x, 3x
3) x, 2x, 2x

Answer 1

let the first angle be x. then the second angle is 2x and third angle=1st angle+second angle=x+2x=3x
hence the measures are x,2x,3x

Answer 2

@ir.enem