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Fudgin [204]
2 years ago
9

Find the surface area of the pyramid. The side lengths of the base are equal.

Mathematics
2 answers:
geniusboy [140]2 years ago
5 0
Surface area is 177.46
Pachacha [2.7K]2 years ago
4 0

Answer:

A = 177.46

Step-by-step explanation:

A = lw + l\sqrt{(\frac{w}{2})^{2} + h^{2}} + w \sqrt{(\frac{l}{2})^{2} + h^{2}

A = 6*6+6root((6/2)^2+11.4^2)+6root((6/2)^2+11.4^2)

A = 177.46

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Answer:

A

Step-by-step explanation:

the height a creates with half of the baseline (5) and a leg (10) a right-angled triangle, and we can use Pythagoras to calculate a.

c² = a² + b²

c being the Hypotenuse (the side opposite of the 90° angle, so in our case the 10 side).

10² = a² + 5²

100 = a² + 25

75 = a²

a = sqrt(75) = sqrt(3×25) = 5×sqrt(3)

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2 years ago
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3 years ago
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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Simplify this number 300mm:9m​
DIA [1.3K]

Answer:

1 : 30

Step-by-step explanation:

300mm:9m​

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so 9 m is 9000 mm

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Answer:

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