It has rotational symmetry, and the angle of rotation is 90 degrees
The surface area of a sphere is 4pi*r^2.
4pi is a constant, so we can ignore it. That means the ratio of the surface areas is determined by the radii squared.
1^2 = 1
8^2 = 64
The answer is 1:64
D: because if you take 9.50-7.50=2 you would get p=price or the price of the pen.
Hope I helped=)
Answer:
18pi or 54
Step-by-step explanation:
it tells you how to solve it on the photo
plug in the radius to the equation radius = 6/2 = 3
then it gives you the volume of the cone
Answer:
Rectangle 11.59 sqft
Rectangle 36 sqft
Polygon 47.59 sqft
Step-by-step explanation: