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Lilit [14]
2 years ago
8

∠ABD is formed by a tangent and a secant intersecting outside of a circle. If minor arc AC = 72° and minor arc CD = 132°, what i

s the measure of ∠ABD?

Mathematics
2 answers:
romanna [79]2 years ago
7 0

Answer: 42°

Step-by-step explanation:

First, find the minor arc AD.

arc AD=360-72-123=156

Then, ∆ABD=1/2(minor arc AD- minor arc AC)

∆ABD=1/2 (156-72)

∆ABC=1/2 84

∆ABC=42°

Sonbull [250]2 years ago
5 0
Check the picture below

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