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3 years ago

Find the surface area of the regular pyramid shown to the nearest whole number. Thank you.

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

7 0

4 x 4 = 16

4 x 7 = 28 * 2 = 56

56 + 16 = 72 ft^2
answer is A

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Please help 60 points!!

Katen [24]

Answer:

The answer to your question is FJ = 18

Step-by-step explanation:

Data

FG = 30

FH = 12

HE = 8

JH ║GE

These triangles are similar, so we can use proportions to find the length of FJ.

$\frac{FJ}{FH} = \frac{FG}{FH + HE}$

Substitution

$\frac{FJ}{12} = \frac{30}{12 + 8}$

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$\frac{FJ}{12} = \frac{30}{20}$

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2 years ago

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kiruha [24]

Answer:

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Step-by-step explanation:

Use the equation of a circle, (x - h)² + (y - k)² = r²

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