The area of circle z is 64 ft2.
what is the value of r?
r = 4 ft
r = 8 ft
r = 16 ft
r = 32 ft

can 4.5 be rounded up to 4? nope.

For this case we have as data that the area of the circle is given by:

According to the following formula, we must find the radius of the circle:

Taking we have:

Finally, the radius of the circle is 4.5ft

4.5ft

1. is 4 and 2. is 3

step-by-step explanation:

so if you look at the first one you see that 1 is to 4 and 2 is to 8 and so on, so you can see for every 1 there is a times 4 so if it were 3 then it would be 3*4 and it is 12

for number 2 it is 3 because 1 is to 3 and 2 is to 6 so for every 1 there is 3 so if it were 3 then there would be 3*3 = 9