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IfmWF = 143° and m/WBF = 117°. find mVL

IfmWF = 143° and m/WBF = 117°. find mVL
asked 38.9k views
5 votes
IfmWF = 143° and m/WBF = 117°. find mVL

IfmWF = 143° and m/WBF = 117°. find mVL-example-1
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User Calvinf
by
8.0k points

1 Answer

2 votes

Answer:

arc VL = 91°

Explanation:

the chord- chord angle WBF is half the sum of the arcs intersected by the angle and its vertical angle , that is


(1)/(2) (WF + VL) = ∠ WBF


(1)/(2) (143 + VL ) = 117° ( multiply both sides by 2 to clear the fraction

143° + VL = 234° ( subtract 143° from both sides )

VL = 91°

answered
User Kkov
by
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