Question

Find the value of x for which the angles ( 2x -5)° and ( x -10)° are the supplementary angles .
2 points
35
65
25
70

Answer 1

Answer:

we know that sum of supplementary angles is equal to 180°

Then,

( 2x-5 )° +(x-10)°=180°

2x-5+x-10=180°

3x-15=180°

3x=180+15

3x=195

X=195/3=65

X=65°