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Artyom0805 [142]
2 years ago
6

A circle has a radius of 30 cm.

Mathematics
2 answers:
Papessa [141]2 years ago
6 0

Answer: the area of the circle is 2827.43cm²

Step-by-step explanation:

topjm [15]2 years ago
4 0
It would be 60 because all you do is double the radius because it is only half of the circle
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3 years ago
Find the circumference of the circle with 1/4 Pi square centimetre square 2<br>​
otez555 [7]

Answer:

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Step-by-step explanation:

Given:

Area of the circle = 1/4π²

Now, to get the circumference of the circle we need the radius.

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Area = \pi r^{2}

\frac{1}{4} \pi ^{2} = \pi r^{2}

dividing π by both sides:

\frac{1}{4}\pi=r^{2}

using square root on both the sides:

\frac{1}{2}\sqrt{\pi } = r

So, the radius is \frac{1}{2}\sqrt{\pi }

Now, putting the formula of circumference:

circumference=2\pi r

                              =2\pi\frac{1}{2} \sqrt{\pi}

                              =\pi \sqrt{\pi}

putting the value of π =3.14

                              =3.14\times\sqrt{3.14}

                              =3.14\times1.77

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Circumference = 5.56 cm

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3 years ago
Justin horse weighs 600 kilograms. How much does it weigh in grams
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600 k (Kilograms to grams is:
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