3 years ago

A’’ = B’’ = C’’ = D’’ = ???

Mathematics

1 answer:

mezya [45]3 years ago

6 0

Answer:

Step-by-step explanation:

b I did the test its correct

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$A=\frac{225t^2}{\pi}$ given the circumference is 30t.

Step-by-step explanation:

The circumference of a circle is $C=2\pi r$ and the area of a circle is $A=\pi r^2$ assuming the radius is $r$ for the circle in question.

We are given the circumference of our circle is $2 \pi r=30t$ .

If we solve this for r we get: $r=\frac{30t}{2\pi}$ . To get this I just divided both sides by $2\pi$ since this was the thing being multiplied to $r$ .