61.5° B D mBD = 123° What is the measure of

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
Chapter2: Parallel Lines
Section2.4: The Angles Of A Triangle
Problem 23E: Consider any triangle and one exterior angle at each vertex. What is the sum of the measures of the...
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В
D
Anna wants to illustrate the property that the shortest side in a
triangle is opposite the smallest angle. The figure shows a triangle
circumscribed by a circle. Anna states the arc measurement
between any two vertices equals (Select]
the measure
of the inscribed angle.
Because of that, if m<B = 15°, m<C = 105°, and m<D = 60°, then the
measure or arc CD
[ Select ]
degrees, the measure of
arc BD = (Select ]
degrees, and the measure of arc CB =
[ Select ]
degrees.
Transcribed Image Text:В D Anna wants to illustrate the property that the shortest side in a triangle is opposite the smallest angle. The figure shows a triangle circumscribed by a circle. Anna states the arc measurement between any two vertices equals (Select] the measure of the inscribed angle. Because of that, if m<B = 15°, m<C = 105°, and m<D = 60°, then the measure or arc CD [ Select ] degrees, the measure of arc BD = (Select ] degrees, and the measure of arc CB = [ Select ] degrees.
61.5°
mBD = 123°
What is the measure of <BED?
Transcribed Image Text:61.5° mBD = 123° What is the measure of <BED?
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