1.	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.	2.5 meters
		C.	5 meters	D.	7.5 meters
		Hint
	2.	Find the area of the triangle.
		A.	18cm2	B.	12 cm2
		C.	12 cm2	D.	37 cm2
		Hint
	3.	Find the area of a trapezoid whose bases are 10mm and 3mm and whose height is 7mm.
		A.	49 mm2	B.	21 mm2
		C.	128 mm2	D.	25 mm2
		Hint
	4.	Find the area of the trapezoid.
		A.	63 ft2	B.	68 ft2
		C.	126 ft2	D.	75 ft2
		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.	7 bags	B.	4 bags
		C.	6 bags	D.	5 bags
		Hint