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aniked [119]
3 years ago
12

The arc length of a sector created by a 90° angle is 25 cm. What is the circumference of the entire circle? Express

Mathematics
1 answer:
docker41 [41]3 years ago
6 0

Answer:

We know length of one quarter of a circle = 2πr/4 = πr/2

So here we can make the equation for to find thr value of radius r

length of one quarter given = 25 cm

so πr/2 = 25 cm

=> πr = 50 cm

=> r = 50/π cm

So the entire circumference of circle =

2πr

= 2 π 50/π cm

= 100π/π cm (ans)

Here we dont substitute the value of π due to represent the answer in terms of pi.

Hope it helps you

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Answer:

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Step-by-step explanation:

The computation of the price of the sofa after two weeks is shown below:

For one week it would be

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Answer:

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4 years ago
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There's two possible ways to find the answer to this.  First you can find a common denominator to reduce both to.  In this case, they can both reduce to a common denominator of 8.  So 6/16 reduces to 3/8 and 30/80 also reduces to 3/8, so they are equal.  The other way is to use a calculator and turn them into decimals by dividing the numerator by the denominator.  They both come out to be .375. Once again they are equal.  You can use whichever method is easier for you.
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