Help please. Please

Answer:
for a circle with a diameter of 16 cm, just draw a circle, put a line through it, and say the line is 16 cm long. it doesnt matter if it is to scale, just state that it is 16 cm
a radius is the distance from the point in the middle of the circle, to the perimeter. Do the same thing as last time, except with this qestions rules and once again, it doesnt have to be to scale.
Step-by-step explanation: