Answer:
4√6^3
Step-by-step explanation:
Answer:
1.9
Step-by-step explanation:
r=C/2π
r-12.1/2π=1.9257...
Add by 4 on each side.
x=8
Answer:
Thank you so muchhhhhhhh!!!!!!!!!!!!!!!!!!!!!!!
Step-by-step explanation:
Sharing is better
Thank you again!!!!
Hope you have a wonderful day!!!!!!!!!!!!!!
Answer:
1056.25π square units
Step-by-step explanation:
A few formulas an definitions which will help us:
(1)
, where c is the circumference of a circle and d is its diameter
(2)
, where A is the area of a circle with radius r. To put it in terms of d, remember that a circle's diameter is simply twice its radius, or mathematically, (3)
.
We can rearrange equation (1) to put d in terms of π and c, giving us (4)
, and we can make a few substitutions in (2) using (3) and (4) to get use the area in terms of the circumference and π:

We can now substitute c for our circumference, 65, to get our answer in terms of π:
