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What is the measure of arc RS?
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12 votes
What is the measure of arc RS?

What is the measure of arc RS?-example-1
User Sherard
by
8.0k points

1 Answer

10 votes

Answer:

B

Explanation:

The secant- secant angle RPS is half the difference of the intercepted arcs, that is

40 =
(1)/(2) (QT - RS) =
(1)/(2) (140 - x) ← multiply both sides by 2 to clear the fraction

80 = 140 - x ( subtract 140 from both sides )

- 60 = - x ( multiply both sides by - 1 )

60 = x

That is arc PS = 60°

User Kalpesh Soni
by
7.5k points
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