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3 dni temu · The area of a circle calculator helps you compute the surface of a circle given a diameter or radius. Our tool works both ways — no matter if you're looking for an area-to-radius calculator or a radius to the area one, you've found the right place .
- Semicircle Area Calculator
With this semicircle area calculator, you can quickly find...
- Central Angle Calculator
In this model, the Sun is at the center of the circle, and...
- Segment Area Calculator
Let's find out how to use this segment area calculator. In...
- Circumference to Diameter Calculator
Diameter and circumference are lengths related to each other...
- Circle Formula Calculator
Suppose you have a circle of radius 3 cm. If you want to...
- Arc Length Calculator
To calculate arc length without radius, you need the central...
- Surface Area Calculator
Our surface area calculator can find the surface area of...
- Sphere Volume Calculator
Enter the radius of the sphere. For size 5 soccer ball...
- Semicircle Area Calculator
Print out these worksheets on circles. Practice naming circles and calculating circumference, radius, diameter, and area of a circle.
Find Radius from Area. Find Area from Circumference or vice versa. Examples, solutions, videos, and worksheets to help grade 7 and grade 8 students learn how to find the area of a circle given its radius or diameter.
Area from Radius or Diameter. Each printable worksheet has 9 problems on finding area of a circle with the known radius or diameter. Two simple word problems and one story problem included.
Example worksheets (circumference, diameter, radius, area of circle) Radius/diameter practice: calculate radius when diameter is given or vice versa. Find the circumference when either radius or diameter is given. Find the area of the circle when either radius or diameter is given.
Circle - Area Answer Key Radius Easy: S3 19 ft 8 m 16 in 12 cm 14 ft 5 mm 13 ft 17 m 20 cm Find the exact area of each circle. Example : 6 ft Area of a circle = r Radius (r) = 6 ft Area = !r" = ! x 6 x 6 Area = 36 ft
To find the area of a circle, use the formula pi x radius2= area. This formula is often written as A=πr2. The circle pictured here has a radius of 5 cm. r= 5 cm. π≈ 3.14. A= 3.14 x (5 cm x 5 cm) A= 3.14 x 25 cm2.