Are all sides equal in an Isosceles triangle. Perimeter 144 radius perimetercircle2PI areacircle PIrad2 areasemicircle 12 area circle. The Circle Names And Parts Of A Circle Teaching Resources Parts Of A Circle Math Notes Math Work Where R is the radius of the circle. . Let us learn more about the perimeter of the circle formula. Find the perimeter and area of the circle if the radius of the circle is 8cm. Its perimeter is actually the length of the line segment that has been bent to form the circle. Which number is greater a googol or a quadrillion. What is the square root of 144. The space or region enclosed by a circle is called the area of the circle. The formula for perimeter of a circle is the circumference formula. The Circumference or perimeter of circle 2πR. So by using the formula of the perimeter of the circle we have. How many sides does a nonagon have. What is the perimeter of...