Perimeter of Circle Problems

Number of problems found: 281

Circular pizza
The radius of a circular pizza is 6 inches. What is the approximate circumference of the pizza? (Use π = 3.14)
Concentric circles 4
One circle has a radius of 98 cm, and a second concentric circle has a 1m 26 cm radius. How much longer is the circumference of the second circle than that of the first?
A circular track
The inner circumference of a circular track is 220 m, and the width of the track is 7 m. Calculate the cost of putting up a fence along the outer circle at the rate of 50 USD/m.
Garden hose
Miguel wound a garden hose around a circular real. If the diameter of the real is 10 inches, how many inches of hose was wound on the first full turn of the real round? The answer to the nearest whole inch, use 3.14 for pi.
A gardener
A gardener wants to fence a circular garden of diameter 21 m. Find the length of the rope he needs to purchase, if he makes 2 rounds of fence. Also find the cost of the rope, if it costs $0.40 per meter.
Four plates
Four equal maximum sized circular plates are cut off from a square paper sheet of area 784 sq cm. Calculate the circumference of each plates.
The diameter
The diameter of a circle is 4 feet. What is the circle's circumference?
Circle
What is the radius of the circle whose perimeter is 11 km?
Length of the circle
Calculate the length of the circle if d = 10 cm.
Perimeter to area
Calculate the area of a circle with a perimeter of 15 meters.
Circle simple
The circumference of a circle is 6.28. What is the area of the circle?
Circumference circles
What is the circumference and area of the circle if r = 18cm
Semicircle
Calculate the length of a semicircle with a radius of 6cm.
Circle radius calculation
Determine the radius of a circle whose length is 21.98 cm
Circle circumference area
Two-thirds of the circumference of the circle is 12π cm long. Calculate the area of the circle.
Circle length
Calculate the length of a circle with a diameter of 7 cm.
Clock hands
What path will the tip of the minute hand of length 5 dm cover on the clock in 2 hours?
Thales
Calculate the length of the Thales' circle described to the right triangle with hypotenuse 44.2 cm.
The length
The length of the circle is 24 cm. What is the circular arc length of the corresponding angle of 30°?
Area of a circle
The circumference of the circle is 150.72 centimeters. Calculate the area of the circle.

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