Find the difference of the areas of a sector of angle 120° and its corresponding major sector of a circle of radius 21 cm.

To prove "p is equal to q" using an indirect proof, what would your starting assumption be?

Which of the following circles have their centers on the x-axis? check all that apply.

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.