Question

The radius of a circular pond is 28 m .A path of 1.4 m width is present around it . Find the area of path

Answer 1

Radius of Pond-28m

width of path-1.4m

$\red{\boxed{Area\:of\:path=length\:of\:path×width}}$

$\underline{\blue{length\:of\:path=circumference\:of\:pond}}$

$length = 2\pi28 \\ = 2 \times \frac{22}{7} \times 28 \\ 2 \times 22 \times 4 \\ =17 6m$
Length=176m

now by using boxed formula we get area

Area=176×1.4

=246.4m^2

$\blue{\boxed{Area=246.4m^2}}$.