Find The Radius.Of A Circle With Diameter 4.2

Find The Radius.Of A Circle With Diameter 4.2

Find the radius.of a circle with diameter 4.2

Answer: 2.1 units

Step-by-step explanation:

A radius of a circle is a line segment whose endpoints are on the circle and its center. It is half a diameter. So,

$radius= \frac{1}{2}diameter\\ r= \frac{1}{2} (4.2)\\ r = \frac{4.2}{2} \\ \left\begin{array}{ccc}r = 2.1\end{array}\right$

Note: When the unit of measurement isnt indicated, you must still put unit to it thats why 2.1 units is the answer.

Hope that helps!

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