Question

radius of circular base of an ear of corn is 6.6 and it height is 11.2 if on an average 1 sqcm area contains 2 corn kernels find the total number of kernels on a corn

Answer 1

Using the Formula

CSA of corn = πrl

⇒ $\bf\huge l = \sqrt{r^2 + h^2}$

= $\bf\huge\sqrt{(6.6)^2 + (11.2)^2}$

= $\bf\huge\sqrt{43.56 + 125.44}$

= $\bf\huge\sqrt{169}$

= 13 cm

$\bf\huge CSA = \frac{22}{7}\times6.6\times13$

= 269.7 cm²

269.7 cm² cover

= 269.7 × 2

= 539.4 kernels

Answer 2

Hope this is useful for u