Question

Radius ofcircular base of an ear of corn is6.6 cm and its length is 11.2 cm. If on an average 1 sq cm area contain 2 corn kernels, find the total number of kernels on a corn ​

Answer 1

Answer:

539 corn kernels

Step-by-step explanation:

The ear of a corn is roughly the same of a cone.

Find the slanted height:

a² + b² = c²

c²  = 6.6²  + 11.2²

c²  = 169

c = 13 cm

Find the surface area:

Surface area = πrl

Surface area = π(6.6)(13)

Surface area = 269.66 cm²

Find the total number of kernels:

1 cm²  = 2 corn kernels

269.66 cm² = 269.66 x 2

269.66 cm² = 539 corn kernels

Answer: 539 corn kernels