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Key Concept 7.4
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1
Triangle MNO has a base NO = 8 m and a height MP = 9 m. A line segment QR is drawn joining the midpoints of sides MN and MO. Find the length of this line segment.
A)4 cm
B)4.5 cm
C)5 cm
D)8 cm
2
Find the height of triangle MQR.
A)4 cm
B)4.5 cm
C)5 cm
D)8 cm
3
A median is drawn from O to Q, the midpoint of side MN. Find the area of triangle ONQ.
A)72 m2
B)36 m2
C)24 m2
D)18 m2
4
D, E, and F are the midpoints of the sides of triangle ABC. What is the ratio of the area of triangle DEF and triangle ABC?
A)1:1
B)1:2
C)1:3
D)1:4
5
In triangle PQR, consider the angle bisector of angle P, and the midpoint A of QR.
A)The angle bisector always passes through A, regardless of the shape of the triangle.
B)The angle bisector will pass through A only if the triangle is equilateral.
C)The angle bisector will pass through A if the triangle is equilateral, or if the triangle is isosceles such that PQ = PR.
D)The angle bisector will never pass through A for any shape of triangle.





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