This figure shows circle Z with chords AB and RS .

Mathematics

2 answers:

lbvjy [14]3 years ago

7 0

Answer:

121°

Proof (Picture):

Fudgin [204]3 years ago

4 0

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

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