Consider circle h with a 3 centimeter radius. if the length of minor arc rt is 2 3 π, what is the measure of ∠rst?

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm