a) 44 cm
b) 66 cm
c) 182 cm
d) 154 cm
Similarto circle sphere is a two dimensional space where the set of points that are at the same distance r from agiven point in a three dimensional space. In analytical geometry with a center and radius is the locus of all points is called sphere
The distance around a circle is called its circumference.
The circumference of the circle is
The object is to find the circumference for the given circle as follows,
The radius of the circle is r=21
Then the circumference of the circle is,
So the circumference of the circle is approximately 132 in.
Micheal came up with a design of a rectangular patio that is 25 ft by 40 ft., and that is surrounded by a terraced strip of uniform width planted with small trees and shrubs. If the A of this terraced strip is