Circumference = pi * diameter C = pi(3.14159 should do) * 30 inches = 94.2478 inches circumference
We're assuming the table and cloth are round? The cloth is a circle with a diameter of 90 inches - 30 from the floor to the table, 30 more across the table, and 30 more to get back down to the floor. The circumference of a circle is pi times the diameter. Do the math!
The radius is 30 inches.
You've stated an impossible question. If a circle has a circumference of 94.2 cm, it has a diameter of 30 cm. If it has a diameter of 15cm, it has a circumference of 47.1 cm.circumference = 2 * pi * radius = pi * diameterIf you had stated the question correctly (changed circumference to 47.1 cm OR changed diameter to 30 cm OR changed "diameter" to "radius"), then the answer would be:pi = circumference / diameter = (e.g.) 94.2 cm / 30 cm
36.09
The circumference of a circle 30 inches in diameter is 30*pi inches
Circumference = pi * diameter C = pi(3.14159 should do) * 30 inches = 94.2478 inches circumference
You need to qualify the 30 inches. Is it the diameter or circumference of a circle?
Diameter = 30/pi inches
Divide the circumference by pi.
About 30 inches
30 inches diameter or 93 inches circumference
diameter of the circle = 30/pi = 9.549 inches to 3 dp
The circumference of a circle with diameter of 30 centimeters is: 94.2 cm (diameter x Pi = circumference).
If the circumference of a circle is 30 cm its diameter is: 9.549 cm
The circumference of every circle is (pi) x (diameter).The circumference of this particular circle is 30 pi.
circumference = 30*pi = 94.248 inches rounded to 3 decimal places area = pi*15 squared = 706.858 square inches to 3 decimal places