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Readme [11.4K]
3 years ago
6

Why does the formula for finding the area of a circle work? A = π r²

Mathematics
2 answers:
Nadusha1986 [10]3 years ago
7 0
The formula for finding the area of the circle works because they made it especially for it. I don’t really know how else to describe it, it simply just works.
loris [4]3 years ago
7 0

Answer:

See below.

Step-by-step explanation:

If we divide the circle into  a large number of sectors and line them up in a straight line it will be close to a rectangle .

The area of the rectangle will be approximately the area of the circle.

If we have an infinite number of these sectors we get a rectangle whose width is the radius r of the circle. We know that the circumference of a circle is equal to 2πr, so our rectangle  will be πr long and r wide. Area = πr*r = πr^2.

Draw a circle and  try deriving the rectangle as above and it  should be clearer.

Hope this helps.

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You earned $210 over 3 years on an account with a 7% interest rate. What was your initial deposit (principal)?
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Answer:

Check step by step explanation

Step-by-step explanation:

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b) You can find this by making the 2 equations equal to each other and solving for x

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Please answer this correctly
maxonik [38]

Answer:

See Below

Step-by-step explanation:

This is very simple, but I can help more if you're stuck.

Take the number of pounds multiplied by the cost per pound.

For example, if I had 5 pounds of peaches, and they are $2 per pound...

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Try it on your own :)

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