2007-01-14 00:59:52 · 14 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
You have to ask a question that has meaning----a circumference is not measured in cm².
I will assume that you mean the area of the circle is 36¶ cm².
Now area = ¶r²
36¶ = ¶r²
r = 6cm
Thus radius = 6cm and diameter = 12cm
2007-01-14 05:24:37 · answer #1 · answered by Como 7 · 0⤊ 0⤋
Circumference = 2 x pi x r where r = radius
36 pi = 2 x pi x r
r = 18 cm
So the diameter is 18 x 2 = 36 cm
2007-01-14 10:25:53 · answer #2 · answered by Kemmy 6 · 0⤊ 0⤋
The circumference of circle = Pi times the diameter
The AREA of circle is = Pi times radius squared.
If the area = 36 pi cm^2
r^2 = 36
r = 6
If the radius is 6cm, the diameter = 12 cm as the diameter = 2 times the radius.
2007-01-14 09:36:26 · answer #3 · answered by rosie recipe 7 · 0⤊ 0⤋
If the circumference of your circle is 36cm then the diameter is 36 divided by pi so 36 x7/22 = 11.454545 your radius would be half of that, ok. The area of your circle would be pi times the radius squared - I'm not going to do it for you
2007-01-14 09:31:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
C= dpi
soo...
in C=36pi
36 is the diameter
and then.. the radius is 1/2 of the diameter
so.. r=1/2(36)
r=18
* wait.. how can it be cm².. when it's only the circumference....
2007-01-14 09:05:08 · answer #5 · answered by tsia 2 · 1⤊ 0⤋
Circumference is the distance around the area that the circle covers 360 degrees
the diameter is the length across the circle
the radius is the center point of the circle
You are in geometry and the half of a circle is 180 degrees
I forgot about Pi
You need your textbook for other facts Thanks for taking me back to HS with you
2007-01-14 09:10:28 · answer #6 · answered by Nina 4 · 0⤊ 0⤋
Circumference cannot be in square centimeters. Assuming it is
36pi cm, and taking the diameter as d cm. the equation would be
36pi=pi*d and so d=36 cm and radius =half of diameter at 18cm.
2007-01-14 10:15:09 · answer #7 · answered by greenhorn 7 · 1⤊ 0⤋
The formula for circmference: 2 x pi x r
Therefore,
36 x Pi^2 = 2 x pi x r
r = (36 x pi^2) / (2 x pi)
= 18 x pi cm
OR = 56.55cm
And the diameter: 2 x r
which gives: 36 x pi cm...
OR = 113.1 cm
2007-01-14 09:05:49 · answer #8 · answered by sheepishbiribiri 2 · 0⤊ 0⤋
the circumference cannot be in
cm squared
therefore,if the area =36(pi)cm^2
=(pi)r^2
this gives
r^2=36>>>>r=6cm
A=(pi)d^2/4
144(pi)=(pi)d^2
this gives
d^2=144>>>>d=12cm
you'll have to phrase your questions
correctly in future-if you have a
problem with dimensional analysis,
contact me
i hope that this helps
2007-01-14 12:21:01 · answer #9 · answered by Anonymous · 0⤊ 0⤋
36 and 18 respectively
2007-01-14 09:08:11 · answer #10 · answered by Anonymous · 0⤊ 0⤋