The angles of a triangle are (8x - 15)°, (6x - 11)° and (4x - 10)°. What is the value of x?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 12
The sum of interior angles of a triangle = 180°
8x - 15 + 6x - 11 + 4x - 10 = 180
⇒ 18x - 36 = 180
⇒ 18x = 216
⇒ x = 12