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3 years ago

9

A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 6 yards long,

and the height of the equilateral triangle is 5.2 yards. The pyramid's slant height is 7 yards. What is its surface area?

1 answer:

melamori03 [73]3 years ago

4 0

Answer:

78.6 sq. yards

Step-by-step explanation:

SA = (½×6×5.2)+(3×½×6×7)

= 15.6 + 63 = 78.6 sq. yards

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1

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2

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3

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