Question

This figure shows circle Z with chords AB and RS .

mAR=55°
mRB=66°
AB=8 m
RS=8 m

What is ​ mRS ​ ?

Enter your answer in the box

Answer 1

121 degrees

Explanation:

I took the test peeps

Answer 2

We have that since the chords are equal, the arcs are equal too. Hence AB=RS. We also have that AB=AR+RB and RS=RB+BS. By equating these two, we have that AR=BS. Hence BS=55 degrees. Substituting back, since we know RB and BS, we get: RS=55+66=121 degrees