Answer:
radius = 11 cm
diameter = 22 cm
Step-by-step explanation:
The diameter of a circle is a measurement determined by drawing a line from one wall of the circle to the direct opposite wall that also travels through the exact center of the circle. Half of the diameter is considered the radius of the circle.
Given this last sentence, we can also conclude that diameter is two times the radius. In formulas, with variable r representing the radius and variable d representing the diameter, the following can help solve for either measurement:
radius = d ÷ 2
diameter = 2 × r, or 2r
The diagram lists the radius as equaling 11 cm in distance. In order to solve for the diameter, plug this measurement into the diameter equation as a substitution for variable r and solve.
diameter = 2 × 11
diameter = 22 cm
The radius is 11 cm and the diameter is 22 cm.
