1.
Find the area of a triangle with base 8.2 centimeters and height 4.25 centimeters.
A.
17.425 square centimeters
B.
18.0625 square centimeters
C.
34.85 square centimeters
D.
6.225 square centimeters
Hint
2.
A trapezoid has an area of 55 square meters, and the lengths of its bases are 7 meters and 15 meters. Find the height of this trapezoid.
A.
8 meters
B.
5 meters
C.
2.5 meters
D.
7.5 meters
Hint
3.
Find the area of a trapezoid whose bases are 10
mm and 3
mm and whose height is 7
mm.
A.
49
mm
2
B.
128
mm
2
C.
25
mm
2
D.
21
mm
2
Hint
4.
Find the area of a triangle whose base is 9.5 m and height is 6 m.
A.
14.25 m
2
B.
28.5 m
2
C.
27 m
2
D.
57 m
2
Hint
5.
Mr. Huang plans to fertilize his back yard. If one bag covers 1,800 square feet, how many bags should he buy?
A.
6 bags
B.
5 bags
C.
7 bags
D.
4 bags
Hint