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Crank
3 years ago
6

VERY QUICK HELP!!!! A toy pyramid has the dimensions shown below. The base of the pyramid is an equilateral triangle. What is th

e surface area of this pyramid?

Mathematics
1 answer:
Elanso [62]3 years ago
4 0

Answer: 102cm²

Step-by-step explanation:

Area of base = 6 × 7 ÷ 2 = 21

Area of lateral face = 6 × 9 ÷ 2 = 27

Since all of the sides of the base are equal, we can multiply the area of 1 lateral face by 3 to get the area of all the lateral faces.

27 × 3 = 81.

Now we add up the area of the base and the lateral faces.

21 + 81 = 102cm²

I am not a professional, simply using prior knowledge!

Note- It would mean the world to me if you could mark me brainliest!

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find the volume of a cylinder if the volume of the cone is 120 cubic inches with the same base and height
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Step-by-step explanation:

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π - pie

r - radius

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Given

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π - 3.142

120 = 3.142 * r^2 * h/3

120 = 3.142r^2h/3

120 = 3.142/3 * r^2h

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V = 3.142 * r^2 * (114.580/r^2)

V = 3.142 * r^2 * 114.580/r^2

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Step-by-step explanation:

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3 years ago
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