Question

find the angle which is equal to twice of its
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Answer 1

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Let the another angle be x

It's complement is 2x

Complementary angle = Two angles whose sum is 90°

A/Q $\red\longrightarrow$2x+x=90

$\red\longrightarrow$3x=90

$\red\longrightarrow$x=90/3

$\red\longrightarrow$x=30

As first angle is 30

So second angle = 30×2=60

To check 60+30=90

And 60 is twice its complements i.e 30