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r-ruslan [8.4K]
3 years ago
12

If the diameter of a circle is 15 centimeters, what is the circumference of the circle in terms of Pi?

Mathematics
1 answer:
Nat2105 [25]3 years ago
6 0
Circumference of a circle: 2 * Pi * R
1. Calculate radius from diameter.
Radius = Diameter/2
Radius = 15/2
Radius = 7.5cm

Formula to calculate the circumference:
2 * Pi * R
= 2 * Pi * 7.5
= 15 * Pi
= About 47.10 cm in terms of Pi.

So, in conclusion, the circumference if this circle is about: 47.10cm.
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Step-by-step explanation:

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3 years ago
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2 years ago
What is the volume of a cylinder if ,
sergiy2304 [10]
<h3><u>Ⲁⲛ⳽ⲱⲉⲅ:</u></h3>

  • 38,016 cm³

<h3><u>Ⲋⲟⳑⳙⲧⳕⲟⲛ :</u></h3>

<u>We </u><u>are </u><u>given </u><u>that </u><u>:</u>

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  • Radius of cylinder = 24 cm

<u>Therefore, Volume :</u>

➙ V = πr²h

➙ V = ( 22 / 7 ) × ( 24 )² × ( 21 )

➙ V = ( 22 / 7 ) × 576 × 21

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➙ V = 38016

‎ㅤ‎ㅤ ‎ㅤ‎ㅤ~<u>H</u><u>e</u><u>n</u><u>c</u><u>e</u><u>,</u><u> </u><u>the </u><u>volume</u><u> </u><u>of </u><u>given</u><u> </u><u>cylinder</u><u> </u><u>is </u><u>3</u><u>8</u><u>,</u><u>0</u><u>1</u><u>6</u><u> </u><u>cm³</u><u>.</u>

<h3><u>⳨ⲟⲅⲙⳙⳑⲇ ⳙ⳽ⲉ∂ :</u></h3>

The volume of cylinder is it's density which tells us the amount by which it can be filled by any material or the the amount of material which can be immersed in it.

The Formula for volume of cylinder is given by :

‎ㅤ‎ㅤ‎ㅤ‎ㅤ‎ㅤ‎➙ πr²h

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