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faust18 [17]
3 years ago
13

I don’t understand??

Mathematics
1 answer:
wlad13 [49]3 years ago
7 0

Answer:

\huge\boxed{\sf x = 10}

Step-by-step explanation:

Hypotenuse = x

Base = 4

Perpendicular = \sqrt{84}

<u>Using Pythagoras Theorem:</u>

\sf H^2 = P^2 + B^2\\\\ x^2 = (\sqrt{84} )^2 + (4)^2\\\\x^2 = 84 + 16\\\\x^2 = 100\\\\Taking \ sq \ root \ on \ both \ sides\\\\x = 10\\\\\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
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\huge \boxed{\mathfrak{Question} \downarrow}

  • Determine the surface area of the right square pyramid.

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

The formula for finding the surface area of a right square pyramid is ⇨ b² + 2bl, where

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  • l = slant height of the right square pyramid.

In the given figure,

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  • slant height (l) = 8 ft.

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\sf \: {b}^{2}  + 2bl \\  =   \sf \: {4}^{2}  + 2 \times 4 \times 8 \\  =  \sf \: 16 + 8 \times 8 \\  =  \sf \: 16 + 64 \\  =  \huge\boxed{\boxed{ \bf 80 \: ft ^{2} }}

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The correct answer is c.
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Step-by-step explanation:

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