i need to find the area and please help before i go nuts?

Question

ok for these i need to find the area
1.radius = 32
2.diameter = 14
3.diameter =17
for these find the radies and diameter
4. r = 7
5.d = 22
6.r = 5
7.d= 40
8.d=9
9.r=100
10.d=75
11. r=62
for these find the radius and area the circumference is givin
12.c=43.96
13. c= 16.96
14.c=72.22
15.c=11.32
16.c= 229.9
17.c=103
18.c=34.63
19.c=25.1
i know im asking alot but i been trying to do this for 3 hours and still dont understand it so please someone that is very good at these types of problems please answer and i will give you 10 points and pick u as best answer

Answer 1

Use the formulas for a circle....

Area = pi * r^2
Circumference = pi * diameter or pi * 2r

You should be able to figure out your answers from there...Just plug into the formulas...You should be doing your own homework....

Answer 2

Give me the formal for finding an area you would have to start there