Then carefully remove the beaker and measure the dis-tance across the gap with a metric ruler or meter stick.Record each diameter measurement.
Now measure the circumferences using a length of string. Draw the string snugly around the beaker and mark the overlapped ends of the string with a finetipped marking pen. Measure the distance between the marks on the string with a meter stick to get the circumference of each of the four beakers.
in your report, mark a graph of the circumferences of the beakers versus their diameters. Draw a line through points. Pick two points on the line (located near the end of the line) and determine the slope of the line, where
slope = change in circumference
change in diameter