Question

Radius of a circle whose diameter is d=7.2

Answer 1

ANSWER:3.6

EXPLAINATION:
since a diameter is the total length from one side to the other and a radius is just to the middle of a circle. to get the diameter yoo would have to divide 7.2÷2=3.6
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Answer 2

For circles, the radius is just half the diameter. So for instance if a diameter is 10, the radius is 5. In this case the diameter is 7.2, so all you have to do is divide it by 2 and you get your radius:

7.2 / 2 = 3.6

Hope that explains it for you!

Radius = 3.6