Math, asked by 22terrillj, 9 months ago

answer question below

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Answered by DrNykterstein
1

Here,

Given that there is a Triangle ABC and angles A and B are complementary to each other.

So,

We know that complementary are angles that sum up to 90°

Now,

➜ angle A + angle B = 90°

Given that cos A = 0.5

But, cos 60° = 0.5

So, On comparing

A = 60°

Also,

☛ Angle A + Angle B = 90°

☛ Angle B = 90° - 60°

☛ Angle B = 30°

So Friend, Your answer is 30°

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