The variable expressions represent the angle measures of a triangle. Find the measure of each angle. Then classify the triangle by its angles. 10. mLA = x° 11. mLA = (3x - 17)° 12. mLA = 2x° mLB = 2x° mLB = (x + 40)° mLB = x° mLC = 3x° mLC = (2x – 5)° mLC = (x – 20)°

Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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The variable expressions represent the angle measures of a triangle.
Find the measure of each angle. Then classify the triangle by its angles.
10. mZA = x°
11. mLA = (3x – 17)°
12. mLA = 2x°
mZB = 2x°
mLB = (x + 40)°
mLB = x°
mLC = 3x°
mLC = (2x - 5)°
mLC = (x – 20)°
Transcribed Image Text:The variable expressions represent the angle measures of a triangle. Find the measure of each angle. Then classify the triangle by its angles. 10. mZA = x° 11. mLA = (3x – 17)° 12. mLA = 2x° mZB = 2x° mLB = (x + 40)° mLB = x° mLC = 3x° mLC = (2x - 5)° mLC = (x – 20)°
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