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ad-work [718]
2 years ago
12

Every dimension of a triangular pyramid is multiplied by 10 to produce a new figure that is geometrically similar. What effect d

oes this have on
the surface area of the pyramid?
OA. The surface area of the pyramid is multiplied by 10.
OB. The surface area of the pyramid is multiplied by 50.
OC. The surface area of the pyramid is multiplied by 100.
OD The surface area of the pyramid is multiplied by 1,000.
O E. The effect on the surface area cannot be determined.
Mathematics
1 answer:
Lesechka [4]2 years ago
8 0
<h3>Answer: Choice C</h3>

The surface area of the pyramid is multiplied by 100.

======================================================

Explanation:

Consider a square that is 3 by 3. Its area is 3*3 = 9.

Then we'll multiply each dimension by 10 to get a 30 by 30 square. The new larger area is 30*30 = 900. The jump from the old area (9) to the new area (900) is "times 100". We can write 100 as 10^2, where the base of that exponential is the scale factor 10.

This idea can apply to any surface area and not just squares. This is why the surface area of the enlarged pyramid is 100 times that of the original pyramid.

new surface area = 100*(old surface area)

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Father = x
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For your vegetable garden, you plan to plant 5 12 of it in corn, 1 6 in different kinds of beans, and 1 12 in tomatoes. You will
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Answer:

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For your vegetable garden, you plan to plant 5 12 of it in corn, 1 6 in different kinds of beans, and 1 12 in tomatoes.

You will plant the remainder equally in eggplant, onions, and squash.

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Part of garden plan for planting corn = \frac{5}{12}

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\frac{1}{9} +\frac{1}{9} \\\\=\frac{1+1}{9} \\\\=\frac{2}{9}

Therefore, \frac{2}{9}  part of the garden will be planted in onions and squash combined.

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