Question

The radius of a circle is measured to be 10.5±0.2 m. Calculate its circumference and give its uncertainty

Answer 1

Explanation:

circumference=2π(10.5)=66+/-0.2

hope it is correct

Answer 2

Answer:

The radius of a circle is measured to be (10.5 ± 0.2) m. Calculate (a) the area and (b) the circumference of the circle, and give the uncertainty in each value.

Explanation: