What is the circumference of a circle with a radius of 30 inches? Geometry Perimeter, Area, and Volume Circumference and Area of Circles 1 Answer BeeFree Nov 24, 2015 #C=2pir# Explanation: #C=2pir=2pi(30)=60pi~~188.5" inches"# hope that helped Answer link Related questions What is the circumference of a 15-inch circle if the diameter of a circle is directly... If the radius of a circle is 4cm, what is the area? How do you find the circumference of a circle with a diameter of 6 cm? How much will it cost to paint a circular sign with a radius of 4 feet if the painter charges... Write the equation of a circle with a center at (-3,-4) and a radius of 3? What is the perimeter of a quadrant of a circle with radius 3cm? I am installing a 1 yard-wide walk around circular swimming pool that is 21 ft in diameter. What... What is the circumference of a circle with radius of 30 inches? What is the equation of a circle with a center at (-3, -4) and a radius of 3? How do you find the radius of a circle when given its circumference? See all questions in Circumference and Area of Circles Impact of this question 10618 views around the world You can reuse this answer Creative Commons License