CBSE Class 7 Answered
Find the value of x in the figure below:
Asked by Topperlearning User | 27 May, 2015, 08:21: AM
Expert Answer
Here, exterior angle = (3x + 6)o
Interior angles are xo and 30o
We know that,
Exterior angle = Sum of interior opposite angles
or (3x + 6) = x + 30o
3x + 6o - x = 30o (subtract x from both sides)
(3x - x) + 6o = 30o (combining like terms)
2x + 6o = 30o (subtract 6o from both sides)
2x = 24o (divide both sides by 2)
Thus, x = 12o
Answered by | 27 May, 2015, 10:21: AM
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