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Find the measure of arc BC
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1 vote
Find the measure of arc BC

Find the measure of arc BC-example-1
User David Marble
by
2.7k points

2 Answers

7 votes

Answer:

BC = 100°

Explanation:

The chord- chord angle BDC is half the sum of the arcs intercepted by the angle and its vertical angle, that is


(1)/(2) ( BC + AE) = 85° ( multiply both sides by 2 to clear the fraction )

BC + AE = 170°

BC + 70° = 170° ( subtract 70° from both sides )

BC = 100°

User Teh
by
3.5k points
4 votes

Answer:

100°

Explanation:

is 25% of the circle

User MofX
by
3.6k points
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