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Sergio039 [100]
3 years ago
15

Find the following measure for this figure.

Mathematics
2 answers:
Eva8 [605]3 years ago
8 0

Answer:

The correct answer is 5√146π  square units

Step-by-step explanation:

From the figure we can see a cone

<u>Points to remember</u>

Lateral surface area of cone = πrl

r - Radius of cone

l - Slant height of cone

<u>To find the slant height</u>

From figure we get,

r = 5 units and height = 11 units

Slant height² = radius² + height² =  5² + 11² = 25 + 121 = 146

Slant height = √146 units

<u>To find the lateral area</u>

lateral area = πrl =  π * 5 * √146  = 5√146π  square units

The correct answer is 5√146π  square units

ss7ja [257]3 years ago
4 0

Answer: last option (5π√146 units²)

Step-by-step explanation:

To solve the exercise you must apply the formula for calculate the lateral area of a cone, which is shown below:

 LA=r*L*\pi

where r is the radius but L is the slant height.

As you can see in the figure attached:

r=5

But you need to find the slant height with the Pythagorean Theorem (L would be the hypotenuse):

L=\sqrt{11^2+5^2}=\sqrt{146}

Substitute into the formula, then:

 LA=(5)(\sqrt{146})\pi=5\pi\ \sqrt{146units²

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Answer:

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Step-by-step explanation:

Compatible numbers are defined as the numbers which are very close to the numbers that they are replacing that divides evenly into each other.

In the context, we have to estimate the quotient using the compatible numbers in order to estimate 245 divided by 3.

So, estimating 245 as 240 and 3 as 30.

Here, 240 is very close to 245 and 30 is close to 3. So the quotient is the result when we divide 240 by 30 and it divides evenly into 240.

We first divide the non zero parts of each number i.e. 24 by 3 to get the first part of the estimate.

Then we add on the zero if there were left in the problem to get your estimate.

Therefore,

240 / 30 = 8

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{\color{red}{\huge{\underbrace{\overbrace{\mathfrak{\:\:\:\:\:\:\:꧁"Answer"꧂\:\:\: }}}}}}

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Step-by-step explanation:

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6 0
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Xelga [282]

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