Solve for r:
B=dPIEr^2

C

Step-by-step explanation:

So we have the equation:

And we want to solve for r.

So first, isolate the r variable. Divide both sides by dπ. So:

The right side cancels:

Take the square root of both sides:

We can rearrange the terms:

Our answer is C.

y/x=18

step-by-step explanation:

answer: the two figures are congruent.

step-by-step explanation: they're congruent because figure efgh is reflected across the x and y axis but it was also rotated.

hope it !