Midsegments of Triangles

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Transcript Midsegments of Triangles

Midsegments of Triangles
B
D
DE = ½ AC
DE || AC
A
E
C
Practice
1) 4
1.Find AD if DB = 4
2.Find BE if EC = 12
3.Find AC if DE = 14
4.Find DE if AC = 30
5.Find x if DE = x + 5 and
AC is 60
2) 12
B
3) 28
4) 15
5) 25
D
A
E
C
Practice
1) 44
1.Find YZ
2) 48
2.Find ZX
3.Find x if XY = 76 and PN 2x
3) 26
-14
4) 24, 24
4.Find PZ and XP
5.Find x if PN = 2x and XY =
5) 4
6x – 8
Find m < AMN and m < ANM.
Given : D is Midpoint of AB
E is Midpoint of BC
Prove : DE || AC and DE = ½ AC
D
B
(b,c)
E
A
(0,0)
C
(a,0)