Answer:60 mm is the radius and circumference when its is diameter is 120mm.
How do you find the radius of a circle with the diameter?
Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation.
How do you convert from diameter to radius?
Just divide by two; half the diameter is the radius. For example, if you have a diameter of 6cm, just divide by 2. You will get half of the value, which is 3cm; this is the radius.
What is the radius if the diameter is 12?
≈38 and A. ≈113 . First you need to find the radius, the key term to find the radius is diameter=2⋅radius ; therefore the radius r is 122=6 inches.
What is the radius of a 20cm circle?
You see the radius is 1/2 the diameter and 1/6 the size of circumference….Look at the table.
| Radius | Diameter | Circumference |
|---|---|---|
| 10cm | 20cm | 62.4cm |
| 20cm | 40cm | 124.8cm |
What is the radius of a 6 inch diameter circle?
The circumference of a circle is 7.5 pi. What is the radius of a 24 inch diameter circle? If it is its circumference, then the answer is self-evident, 24 inches….What is a 6 inch radius?
| Size in Inches | Circumference Inches | Area in Square Inches |
|---|---|---|
| 5 3/4 | 18.060 | 25.970 |
| 6 | 18.850 | 28.270 |
Is a radius half the diameter?
The radius of a circle is the length of the line segment from the center of a circle to a point on the circumference of the circle and diameter is a line segment from one end of the circle to the other end of the circle passing through the center of the circle. So, the radius is half the length of the diameter.
How to calculate the radius of a circle?
The diameter of a circle is the length of a straight line drawn between two points on a circle where the line also passes through the centre of a circle, or any two points on the circle, as long as they are exactly 180 degrees apart. This is the radius of a circle that corresponds to the specified diameter.
What is the radius if the diameter is 20 cm?
If 20 cm. is the radius, you already have the answer. If 20 cm. is the diameter, the radius is half the diameter. (10cm) What is the area of a circle with a radius of 20cm and a diameter of 50cm? This cannot be properly answered because a 20 cm radius equates to a 40 cm diameter. Also, a 50 cm diameter means a 25 cm radius.
What are the three dimensions of a circle?
There are three dimensions most often used to describe a circle: 1 The diameter – defined above 2 The radius – the distance from the circle’s center or origin to the edge, one half the diameter 3 The circumference – the length of the outside boundaries of the circle More …
How to find the area of a circle?
To find area from the circle’s diameter: a = pi (d/2)^2 a = π(d/2)2 Using the Diameter Calculator You can enter the diameter and then compute radius and circumference in mils, inches, feet, yards, miles, millimeters, centimeters, meters and kilometers.
