Question
Find the value of x.
- 63º
- 77º
- 13º
- 14º
Hint:
When the sum of two angles is equal to 90 degrees, they are called complementary angles. For example, 30 degrees and 60 degrees are complementary angles.
The correct answer is: 13º
Here 
FGH = 90
That means FGO and OGH are complimentary angles. When the sum of two angles is equal to 90 degrees, they are called complementary angles.
FGO + OGH = FGH = 90
But, FGO = 63 and OGH = (x + 14)
Thus, the value of x is 13°.
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