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3 years ago

Find the surface area of the regular pyramids. Round your answer to the nearest tenth.

Mathematics

1 answer:

katrin2010 [14]3 years ago

8 0

Answer:

S.A = 147.35 cm²

Step-by-step explanation:

Surface area of the triangular pyramid = base area + ½(perimeter of base*slant height)

Base area = ½*bh

b = 7 cm

h = 6.1 cm

Base area = ½*7*6.1 = 21.35 cm²

Perimeter of triangular base = 7 + 7 + 7 = 21 cm

slant height = 12 cm

Plug in the values into the equation

S.A = 21.35 + ½(21*12)

S.A = 21.35 + 126

S.A = 147.35 cm²

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3 years ago

What is the measure of A and what is the measure of B

Lady bird [3.3K]

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Answer:

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Step-by-step explanation:

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4 years ago

A hypothetical cube grows so that the length of its sides are increasing at a rate of 2 m/min. How fast is the volume of the cub

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Answer:

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Step-by-step explanation:

Volume of cube = v^3

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Just for future clarification.

(2 min ago the volume would have been.

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V 2min ago = 4*4*4 = 64.

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So this is what the volume looked like Each minute

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3 years ago

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