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Quarter 4 Test 2. L. Area of Polygons LI. Surface Area of Rectangular Prisms LII . Volume of Rectangular Prisms. A tabletop shaped like a trapezoid has parallel bases of 40 cm and 62 cm and a height of 34 cm. Find the area. 62cm 34cm 40cm. A=(b 1 + b 2 )h 2 - PowerPoint PPT Presentation
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Quarter 4 Test 2L. Area of Polygons
LI. Surface Area of Rectangular Prisms
LII. Volume of Rectangular Prisms
A tabletop shaped like a trapezoid has parallel bases of 40 cm and 62 cm and a height of 34 cm. Find the area. 62cm
34cm
40cm
A=(b1+b2)h 2
A=(62+40)34 2
A= 1,734 cm2
The area of a square is 49 square meters. If the area of the square is increased by 4 times, how many times greater is the length of the new square compared to the original square?
The length of the new square is two times greater.
The area of a parallelogram is 99 square inches. Its height is 9 inches. What is the base of the parallelogram? Solve algebraically.
Answer: A = bh 99 = 9b 9 9 b = 11 inches
A bulletin board is shaped like a trapezoid. If the bases are 45cm and 65cm and the height is 40cm, what is the area?
A=(b1+b2)h
2
A=(45+65)40
2
A=2,200cm2
Find the volume of the rectangular prism.
11cm
16cm
6cm
V=lwh
V=16(6)11
V=1,056cm3
Find the area of a trapezoid having a height of 32in. and parallel bases measuring 49in. and 61in.
61in.
32in.
49in.
A=(b1+b2)h 2A=(61+49)32 2A=1,760in.2
How many tiles 4 inches on each side will be needed to cover a floor measuring 8 feet by 7 feet?504 tiles will be needed.
Find the surface area of therectangular prism.
17 mm
40 mm
SA= 2(19 x 40) + 2(40 x 17) + 2(19 x 17)SA= 2(760) + 2(680) + 2(323)SA= 1,520 + 1,360 + 646SA= 3,526 square mm
19 mm
Find the area of the triangle.
13cm
16cm
22cm
A=1/2 bh
A=.5(16)13
A=104cm2
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