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Q: If a radius is 15 inches long, how long is a diameter?

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If the radius is 2 then the diameter is 2*2 = 4 inches and the circumference is about 12.6 inches and not 15 inches

The diameter of a circle is twice its radius. Thus the radius of a circle is half its diameter. → a circle with a diameter of 15 cm has a radius of 15/2 cm = 7.5 cm

The radius if the circle is half of its diameter and so 30/2 = 15 mm

It is: 15/2 = 7.5 units of measurement

The radius of a circle equals the diameter divided by two. 30/2 is 15, so your answer is 15 cm.

Related questions

30 inches. The diameter is twice the length of the radius.

30 inches

If the radius is 2 then the diameter is 2*2 = 4 inches and the circumference is about 12.6 inches and not 15 inches

2*15 = 30 inches

15 inches.

30 inches

Circumference = Pi multiplied by the diameter. C = (3.1415)(15 in.) = 47.12 in. Therefore, the circumference of a circle with a diameter of 15 in. and a radius of 7.5 in. is approximately 47.12 inches.

If the diameter is 15 then the radius is 7.5.

No ! the radius of the tire has to be 7.5 inches not 15 inches. The diameter has to be 15 inches, and the width has to be compatible with the tire width.

Convert the degrees to radians. Also, you need the radius, not the diameter. In that case, the distance along the circle is simply the product of the angle, and the radius.

The diameter of a circle is twice its radius. Thus the radius of a circle is half its diameter. → a circle with a diameter of 15 cm has a radius of 15/2 cm = 7.5 cm

The radius of a circle is 1/2 of its diameter. If the diameter is 15 meters, then the radius is 7.5 meters.

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