Answer:
1. 12cm.
2. 10cm.
3. 18cm.
4. 16cm.
5. 3cm. (or -3 if your question was negative.)
6. 36cm.
7. 8cm.
Step-by-step explanation:
To find the radius of a circle, simply divide the diameter by 2.
With this being said we can just add on top of the given radius.
Example:
The given radius is 5cm. What is 5cm + 5cm? 10cm.
Thus, getting our answer.
Step-by-step explanation: