Question

1. The diameter of a circular tray is 28 cm. Findthe area of the tray (Take at = ??]A. 44 cmB. 88 cmC 154 cmD. 616 cm

Answer 1

$\text{Area of the tray = 616 cm (Option D)}$

Let d represent the diameter of the circular tray

$d\text{ = 28 cm}$

The area of a circle is given by the formula:

$\text{Area, A }=\text{ }\frac{\pi\times d^2}{4}$$Take\pi\text{ = 3.142}$$A\text{ = }\frac{3.142\times28^2}{4}$$A\text{ = }\frac{3.142\times784}{4}$$A\text{ = }\frac{2463.33}{4}$$A\text{ = }615.83\text{ cm}$$A\text{ = 616 cm (to the nearest whole number)}$