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what is the surface area of cone with a diameter of 10 centimeters and a slant height of 12 centimeters round your answer to the

Oduvanchick [21]

The surface area of the cone is $266.9cm^2$

Explanation:

The diameter of the cone is 10 cms

Thus, the radius of the cone is given by

$r=\frac{d}{2} =\frac{10}{2} =5$

The slant height of the cone is 12 cms

The formula for surface area of the cone is given by

$S A=\pi r^{2}+\pi r l$

Substituting the values, we get,

$S A=(3.14)(5)^{2}+(3.14)(5)(12)$

$S A=(3.14)25+(3.14)(60)$

$SA=78.5+188.4$

$SA=266.9cm^2$

Thus, The surface area of the cone is $266.9cm^2$

5 0

3 years ago

Emily paid 287.50 in taxes to the school. This years taxes were 15% increase from last year. What did Emily pay?

Vadim26 [7]

$287.50+17%=$330.625

6 0

3 years ago

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A cube has edge length 3 in. What is its volume in inches cubed?

Nadusha1986 [10]

Answer:

$Volume = 33 = 27 inches^{3}$

Can u gimme brain plz!

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5 0

3 years ago

Use the method of mathematical induction to prove that for each integer n≥1, 5+9+13+⋯+(4n+1)=2n^2+3n

Anastaziya [24]

Answer:

Step-by-step explanation: 834^2n>4n

5 0

3 years ago

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DerKrebs [107]

Answer:

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Step-by-step explanation:

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6 0

3 years ago

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Find the value of each variable please help​

Find the value of each variable please help