3 years ago

Find the surface area of the prism. 6.5 feet, 6, 2.5 feet, 11 feet

1 answer:

3 0

First find the front and back
2(b * h/2)
2(2.5 * 6/2) = 2(7.5) = 15
Find the two middle
Rectangle = b * h
2(11 * 6.5) = 143
Find the bottom: b * h
2.5 * 11 = 27.5
Add all together
15 + 143 + 27.5 = 185.5 ft^2

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ruslelena [56]

Answer:

Area = 96 square cm

Step-by-step explanation:

Area of the figure = (2 x Area of triangles) + Area of square

$Area \ of \ triangle = \frac{1}{2} \times base \ height = \frac{1}{2} \times 8\times 4 = 16cm^2\\\\Area \ of \ square = side \times side = 8 \times 8 = 64cm^2$