Question

see picture below. Just need the radius of circle de (Value, and the circumfrtnce value and the area value

Answer 1

The diameter of the circle is given 40 cm,

`D=40`

Consider that the radius 'R' of the circle is half its diameter,

`\begin{gathered} R=(1)/(2)\cdot D \\ R=(1)/(2)\cdot(40) \\ R=20 \end{gathered}`

Thus, the radius (JK)) of the circle is 20 centimeters.

Consider that the circumference 'C' of the circle is given by the formula,

`C=2\pi R`

Substitute the value,