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2 years ago

6. ∠A and ∠B are vertical angles. M∠B= (3x+4)° and m∠A = (x+48)° find the measure of angle A

Mathematics

1 answer:

maks197457 [2]2 years ago

7 0

In Triangle

ABC with the right angle at C, let a,b, and c be the opposite, the adjacent, and the hypotenuse of ∠A. Then, we have

sin A=ac⇒m∠A=sin−1(ac)

sin B=bc⇒m∠B=sin−1(bc)

I know its not the answer but I hope it was helpful

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First let's make things a little simpler and put these arcs in terms of x. We know that the degree measure around the outside of a circle, regardless of its size, is 360. So let's say that arc BC is x. That means that arc BDC is 360 - x. This is because arc BC + arc BDC = 360. Substituting in our x's we have:

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