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olga55 [171]
2 years ago
5

. A pedestal is built using a trapezoid-shaped base. Find the area of the trapezoid.

Mathematics
2 answers:
Artist 52 [7]2 years ago
8 0
Should be 18 square meters
Igoryamba2 years ago
4 0

18m^2

area of a trapezoid = (a+b)/2 * h, where a and b are bases 1 and 2, and h is height

(4+8)/2 * 3

= 12/2 * 3

= 6 * 3

= 18

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ExtremeBDS [4]
The height of the triangular base of the pyramid is calculated through the equation,
                                        h = (cos x)(18 in)
where h is height and x is half of the angle of the triangle. Since the triangle is equilateral, the value of  x is 30°. Substituting,
                                        h = (cos 30°)(18 in)
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Thus, the height of the base is approximately 15.59 inches. 
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kaheart [24]

Answer: changed by $48

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4 0
2 years ago
Factor completely. x 3 + 6x 2 - 4x - 24
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3 years ago
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