The diameter of a circle is 8 mm Answer the parts below Make sure that you use the correct units in your answers If necessary refer to the list of geometry formulas a Find the exact area and circumference of the circle Write your answers in terms of Exact area 0 b Approximate the area and circumference of the circle To do the approximations use the button on the ALEKS calculator and round your answers to the nearest hundredth Approximate area Exact circumference 0 Approximate circumference 00 mm 8 mm X J mm mm