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3 years ago

Find The area of the triangle.

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

4 0

Answer:

86.1 yd^2

Step-by-step explanation:

Half of 21 is 10.5

10.5*8.2=86.1

There is no need to divide it by two as there are two triangles stuck together. You would need to multiply it by two if you did divide it by two, but the answer would be the same.

kaheart [24]3 years ago

3 0

Answer:

C : 86.1

Step-by-step explanation:

This is the formula to find a triangles area:

Hope this helped! :)

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8 identical pens cost £12 work out the cost of 10 of these pens

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Ok. So, if 8 pens cost £12. Then we would divide £12 by 8. Each pen costs £1.5.

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Citrus2011 [14]

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jarptica [38.1K]

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3 years ago

what is the volume of a cone with a diameter of 30 feet and height of 60 feet? use 3.14 for pi. enter your answer in the box

Marizza181 [45]

The volume of a cone with a diameter of 30 feet and a height of 60 feet is 14130.

<h3>What is the volume of a cone?</h3>

The volume of the cone is given by;

$\rm Volume \ of \ cone=\dfrac{1}{3}\pi r^2h\\\\Where;\ r = radius \ and \ h = height$

The volume of a cone with a diameter of 30 feet and a height of 60 feet.

The radius of the cone is;

$\rm Radius =\dfrac{Diameter}{2}\\\\Radius=\dfrac{30}{2}\\\\Radius=15$

Substitute all the values in the formula

$\rm Volume \ of \ cone=\dfrac{1}{3}\pi r^2h\\\\ Volume \ of \ cone=\dfrac{1}{3}\times 3.14 \times 15^2 \times 60\\\\Volume \ of \ cone=14130$

Hence, the volume of a cone with a diameter of 30 feet and height of 60 feet is 14130.

Learn more about the volume of cone here;

brainly.com/question/3013784

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Show steps to <br> Solve -5^6

RSB [31]

Answer:

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Step-by-step explanation:

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