In Exercises 13–16, assume ZA and ZB are complementary andZB and 2C are supplementary.13. If mLA = 42°, then m2B =? and m2C =?14. If mZB = 78°, then mLA?and m2C =%3D15. If mLA17°, then mZB :? and mLC =? .16. If mZB = 45°, then mLA? and m2C =? .

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In Exercises 13–16, assume LA and ZB are complementary and ZB and LC are supplementary. 13. If mLA 42°, then mB = ? and mLC = 14. If mLB = 78°, then mLA and mLC = 15. If mLA = 17°, then mLB ? and mLC = 16. If mLB = 45°, then mLA and mLC =

In Exercises 13–16, assume LA and ZB are complementary and ZB and LC are supplementary. 13. If mLA 42°, then mB = ? and mLC = 14. If mLB = 78°, then mLA and mLC = 15. If mLA = 17°, then mLB ? and mLC = 16. If mLB = 45°, then mLA and mLC =

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

Chapter5: Similar Triangles

Section5.2: Similar Polygons

Problem 22E: In Exercises 21 to 24, ADEABC. Given: DE=5,AD=8,DB=BC Find: AB HINT: Find DB first.

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Question

In Exercises 13–16, assume ZA and ZB are complementary and
ZB and 2C are supplementary.
13. If mLA = 42°, then m2B =
? and m2C =
?
14. If mZB = 78°, then mLA
?
and m2C =
%3D
15. If mLA
17°, then mZB :
? and mLC =
? .
16. If mZB = 45°, then mLA
? and m2C =
? .

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