Sagot :
Answer:
1. the length of the radius is one half of the total length of the diameter in a circle.
2. By multiplying the diameter by 1/2 since radius is half of the total length of the diameter.
Step-by-step explanation:
1. it is half because the formula of radius is r= 1/2d
d stands for diameter.
2.using the formula r=1/2d