The perimeter of a circle is`4pir\ c mdot` What is the area of the circle?

The perimeter of a circle is4 pir cm.What is the area of the circle?

What is the perimeter of a circle ?

The radius of in-circle of a triangle is 4 cm and the perimeter of the triangle is 20 cm. What is the area of the triangle?

An equilateral triangle with a perimeter of 12 is inscribed in a circle. What is the area of circle?

The cicrcumference of a circle is give by the formula C = pid where d is the diameter of the circle. The formula for the area of a circle is A = pir^2 . If the area of the circle is 9pi , what is the circumference of the circle ?

If the perimeter of a circle is equal that of a square then the ratio of their area is

The circumference of a circle is equal to the perimeter of a square of side 11 cm.Find the area of the circle.

Perimeter and Area of a circle

If the perimeter of a, circle is equal to that of a square, then what is the ratio of area of circle to that of square ?