# How to find radius ????

Dear Student

1 . if the diameter is given the radius will be half of the diameter.
For example: if the diameter is 10 cm then the radius will be half of it =5cm
diameter, d =10cm

2. if the circumference is given we should divide the circumference by 2 $\mathrm{\pi }$
For example:  - if the circumference. is 44 cm the radius r =

circumference = 2 r

Regards

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Fast this is my hw
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