To find the radius you need to decide both by two which is A- 20 and B- 5 so the difference between the two is 15
Step-by-step explanation:
We know that the lenght of an arc is pi. Therefore:
pi = 1/2pi*r where r is the radius
r = 2
On one side we have 2 circles, so the lenght of 1 side is 2. The perimeter will be 2*4 = 8.
*Note: the first equation I wrote can be derived from the general equation for calculating the lenght of a circumference known its radius (L = 2 * pi * r).
Answer:
None of those values are equivalent to that problem. The problem you have written is equal to -62, so maybe you have the equation written wrong.
Density=mass/volume
d=m/v
v=m/d, we are told that m=378.24 and d=2.76 so
v=378.24/2.76
v≈137.04 cm^3 (to nearest hundredth of a cubic centimeter)
