Question

in the adjoining figure what values of x make AOB a straight line 3x-5, 55,x+20​

Answer 1

Answer:

27.5

Step-by-step explanation:

AOB is straight line

x = ?

angle AOC + angle COD + angle DOB = 180

(3x-5) + 55 + x + 20 = 180

3x+x+55+20-5 = 180

4x+75-5 = 180

4x+70 = 180

4x = 180- 70

4x = 110

x = 110/4

x = 27

HOPE it helps you.