Answer:
Radius: 8.5 inches
Area ≈ 226.98
Circumference ≈ 53.42
Step-by-step explanation:
2πr = formula for circumference of a circle
πr² = formula for area of a circle
radius of a circle = (1/2)d
Answer:
OPTION A:
, where
.
Step-by-step explanation:
Given: 
Taking
common outside in the denominator, we get:

will get cancelled on the numerator and denominator, we get:

we know that the denominator can not be zero.
That means, 1 + 8x
0.


So, the answer is:
, where
.
Answer:
615.44
Step-by-step explanation:
If the diameter is 28, that means the radius is 14.
The formula for the area of a circle is pi x radius to the power of 2. So, 14 to the power of 2 (or 14 x 14) equals 196. 196 x 3.14 (pi) = 615.44
I think this is how you do it.
If I'm wrong tell me.