Geometry – Unit 5 Practice
Mid-Segment Theorem
Name: _____________________________!
Date: ___________ Pd: ____
Quick Concept: The mid-segment of a triangle is the segment that connects
the midpoint of two sides. The mid-segment is parallel to and half the size of
the third side.
Mid-Segment
G.CO.C.10
1) Find the value of x.
a)
b)
c)
92°
44°
x
x
18 cm
z
y
y
x = _____________
y = _____________
z = _____________
d)
x = _____________
e)
y = _____________
x = _____________
y = _____________
f)
3 cm
x
z
x
y
8 cm
y
6 cm
44°
35°
x
5 cm
y
93°
24 cm
x
78°
8 cm
8 cm
8 cm
x = _____________
y = _____________
z = _____________
x = _____________
x = _____________
y = ____________
2) The perimeter of a triangle is 24 cm. What would be the perimeter of the triangle formed by the
three mid-segments of the same triangle?
3) An equilateral triangle has a side of 12 cm. What is the perimeter of the triangle formed by the three
mid-segments of the same triangle?
SNRPDP
Unit 5: Triangles and Triangle Congruence
NVACS – Revised 2015-2016
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