3 years ago

HELP ASAP!!

Mathematics

2 answers:

natka813 [3]3 years ago

8 0

if you look at it , some would say all the above but if you take a closer look at it the answer is C

nadezda [96]3 years ago

7 0

I believe it could be all of the above, but if it is nit picky I agree with C.

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Answer: B ) 40

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3 years ago

I need help please

nlexa [21]

Answer:

Step-by-step explanation:

No she is not correct because we dont have only one angle angle G is 90.

So we can easily find the angle D

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Rudiy27

Answer:

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Step-by-step explanation:

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3 years ago

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2 years ago

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Find the total surface area of this cone. Round to the nearest tenth.

leva [86]

Step-by-step explanation:

for given cone:

h = 3 ft, r = 3 ft

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$\therefore \: l = \sqrt{ {h}^{2} + {r}^{2} } \\ = \sqrt{ {3}^{2} + {3}^{2} } \\ = \sqrt{9 + 9} \\ = \sqrt{2 \times 9} \\ \therefore \: l= 3 \sqrt{2} \: ft \\ \\ total \: surface \: area \: of \: cone \\ = \pi \: r(l + r) \\ = 3.14 \times 3(3 \sqrt{2} + 3) \\ = 9.42 \times 3( \sqrt{2} + 1) \\ = 28.26 \times (1.414 + 1) \\ = 28.26 \times 2.414 \\ = 68.21964 \\ \approx \: 68.2 \: {ft}^{2}$

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3 years ago