Radius of circular base of an ear of corn is 6.6 cm and its length is 11.2 cm. If on an average 1 sqcm area contains 2 corn kernels, find the total number of kernels on a corn.
r = 6.6 cm
length of corn = h = 11.2 cm
Curved surface area of cone-shaped corn = πrl
= 3.14 × 6.6 × 13
= 269.412 cm2
Number of kernels = curved surface area × 2
= 269.412 × 2
= 538.824
∴ average no. of kernels on the corn = 539.
