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faust18 [17]
3 years ago
8

find the surface area of a right square pyramid if the area of the base is 144 cm squared and the height of the pyramid is 42 cm

.
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
4 0
Area of a pyramid is ⅓ * area of Base * height

or ⅓ * 144 * 42 or 2016 cm³
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Answer:

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If line n bisects segment CE, find the positive value of x.<br><br> A.6<br> B.10<br> C.15<br> D.9
givi [52]

9514 1404 393

Answer:

  D.  9

Step-by-step explanation:

The segment lengths are equal, so ...

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natulia [17]
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subtract 144 from both sides
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take the square root of both sides
t = 5  This is also know as a Pythagorean Triple 5-12-13

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subtract 81 from both sides
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take the square root of both sides
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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