1. The problem statement, all variables and given/known data The radius of a circle is measured to be 2.4 cm +/- 0.1 cm. Find the error in the area of the circle. Find the error in the circumference. 2. Relevant equations Have no idea but I'm taking a guess it could be multiplying fractional uncertainties? 3. The attempt at a solution I got 18.09 for area and 15.08 for circumference...just need a way to go about calculating error ...really rusty in math and learning physics now, pardon the noob question.