DE is a midsegment. ZBED 40° B D A C ZEC A degrees ZDEC degrees

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
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Help me please
= 40°
DE is a midsegment. ZBED
B
D
A
C
degrees
ZEC A =
degrees
ZDEC
Transcribed Image Text:= 40° DE is a midsegment. ZBED B D A C degrees ZEC A = degrees ZDEC
Expert Solution
Step 1

We know by Midsegment Theorem that the midsegment connecting the midpoints of two sides of a triangle is parallel to the third side of the triangle.

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