Oh, what a happy little question! If the radius of a circle is 5.5cm, we can find the diameter by multiplying the radius by 2. So, the diameter of this circle would be 11cm. Just a simple little calculation to bring a smile to your face!
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Well, darling, if the radius of a circle is 5.5cm, then the diameter is simply twice the radius. So grab a calculator or use that brain of yours and multiply 5.5 by 2 to get the diameter. Spoiler alert: it's 11cm. Now go impress someone with your newfound knowledge, you're welcome.
Oh, dude, it's not rocket science. The diameter of a circle is just double the radius, so if the radius is 5.5cm, the diameter is 11cm. It's like, circle math 101.
The radius of a circle is half of its diameter
1/2 of the diameter
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
7cm; the diameter of a circle is twice its radius.
The radius of the circle is half the diameter of the circle. 30mm radius would mean 60mm diameter or 6cm.