Answer:
Radius = 7.5cm
Diameter = 15cm
Step-by-step explanation:
Radius is a straight line that connects the center of a circle to a point on the circumference (outside of the circle).
A Diameter is a straight line that goes through the center of a circle and connects two points on the circumference (outside of the circle).
The line shown goes from the center to the outside of the circle, so it is the radius.
Radius = 7.5cm.
The diameter of a circle is twice the length of the radius.
d = 2r
d = 2 x 7.5
d= 15cm
Therefore the radius is 7.5cm and the diameter is 15cm!
Hope this helped!