An angle measures 84° less than the measure of its complementary angle. What is the measure of each angle?
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Answer: the two angles measure 3° and 87°
Step-by-step explanation:
Call the measure of one angle n. The other angle, which is 84° bigger, measures n + 84°.
Since the angles are complementary, their measures must add to 90°. Set up an equation and solve for n.
n+ n+ 84° = 90°
2n+ 84° = 90°
2n+84° − 84° = 90° − 84°
2n= 6°
2n÷ 2 = 6° ÷ 2
n = 3°
The first angle measures 3°. Now plug in n = 3° to find the measure of the other angle, n + 84°.
n+ 84°= 3° + 84°
= 87°
So, the two angles measure 3° and 87°
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