How do you find the area of a circle with the circumference?

1 answer:

6 0

Circumference = 2*pi*radius

find the radius using this formula.

then use this formula => area of circle = pi*radius*radius

put the value of the radius that you get with the first formula to find the area

hope it helps you

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Read 2 more answers

12 yellow balls and 9 red balls are placed in an urn. Two balls are then drawn in succession without replacement. What is the pr

denis23 [38]

Answer:

$\frac{9}{35}$

Step-by-step explanation:

When the first draw is done there are 9 red balls in a sample size of 21. So there probability of drawing a red ball will be $\frac{9}{21}$

When the second draw is done, there will be 12 yellow balls in a sample size of 20 since the first ball will not have been replaced into the bag. So the chance of someone drawing the second ball in the second draw is $\frac{12}{20}$