Answers

2015-09-27T21:03:19+05:30
Let the angle be x degrees.
complementary angle of x is (90-x)

So x = 2(90-x)
⇒ x = 2×90 - 2×x
⇒ x = 180 - 2x
⇒ x + 2x = 180
⇒ 3x = 180
⇒ x = 180/3
⇒ x = 60°
The angle is 60°.

Check:
complementary angle of 60° = 90-60 = 30°
And 60° is twice is 30°. So Answer is correct.
0
2015-09-27T21:09:47+05:30

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Let the another angle be x
its complement is 2x
complementary angle=  two angles whose sum is 90`
a/q     2x+x=90
        => 3x= 90
             x= 90/3
            ∴x= 30
as first angle is 30
so second angle is 2 x 30= 60
to check, 60+30= 90
and 60 is twice its complement i.e 30
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