If the first two digits are four times the size of one of the two complementary angles, then what is the other number?
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Answer:
Let the complementary angles be x and (90
o
−x).
Then, 2x=3(90
o
−x)
⇒ 2x=270
o
−3x ⇒ 5x=270
o
⇒ x=
5
270
o
=54
o
∴ The two angles are 54
o
, 36
o
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