Three angles on one side of a straight line are 4x+30,5x-10 and 6x+40 degree respectively. Find the value of x.
Answers
Answered by
4
Answer:
4x + 30 + 5x - 10 + 6x + 40 = 180
15x + 60 = 180
15x = 180 - 60
15x = 120
x = 8.
Answered by
4
Answer:
x = 8
Step-by-step explanation:
We know that sum of all angles on one side of a straight line = 180°
∴ 4x + 30 + 5x - 10 + 6x + 40 = 180°
⇒ 15x + 60 = 180
⇒ 15x = 180 - 60
= 120
⇒ x = 120/15 = 8
∴ x = 8
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