# Physics

posted by
**Kpang**
.

You have a circular table. You measured its radius to be 10 cm with an uncertainty dr =+/- 3mm. The area would be A +/- a cm^2.

a. What is A?

b. What is a?

posted by
**Kpang**
.

You have a circular table. You measured its radius to be 10 cm with an uncertainty dr =+/- 3mm. The area would be A +/- a cm^2.

a. What is A?

b. What is a?