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1 year ago

9

i need to find thr surface area for this

1 answer:

mash [69]1 year ago

6 0

Answer:

96 cm²

Step-by-step explanation:

The surface area of a pyramid is the sum of the base area and the area of the four triangular faces. Using the formulas for each of these, a simplified formula can be written.

A = s(s +2h)

where s is the side length of the square base, and h is the slant height of a triangular face.

__

For the given dimensions, s=4 cm, h=10 cm, the surface area is ...

A = (4 cm)(4 cm +2×10 cm) = (4)(24) cm²

A = 96 cm²

The surface area of the pyramid is 96 square centimeters.

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Answer:

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Step-by-step explanation:

Actual dimensions:

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Scale dimensions:

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2 years ago

Please see the image and help with this homework problem. thank you!

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we have the function

$E=\sin \frac{\pi}{14}t$

Part a

For t=7

substitute in the given function

$\begin{gathered} E=\sin \frac{\pi}{14}7 \\ E=1 \end{gathered}$

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$\begin{gathered} E=\sin \frac{\pi}{14}14 \\ E=0 \end{gathered}$

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$\begin{gathered} E=\sin \frac{\pi}{14}21 \\ E=-1 \end{gathered}$

For t=28

$\begin{gathered} E=\sin \frac{\pi}{14}28 \\ E=0 \end{gathered}$

For t=35

$\begin{gathered} E=\sin \frac{\pi}{14}35 \\ E=1 \end{gathered}$

Observation: The values of E varies from -1 to 1, including the zero

Part B

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<h2>the period is 28 days</h2>

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