Question

A circle with a diameter 28m. Find it area and circumference Take[Π=3.4]​

Answer 1

Diameter of a circle = 28 m

Then, radius of the circle will be :

$= \tt \frac{diameter}{2}$

$=\tt \frac{28}{2}$

$= \tt14 \: m$

Thus, the radius of this circle = 14 m

Area of circle :

$= \tt\pi {} {r}^{2}$

$=\tt 3.14 \times 14 \times 14$

$= \tt3.14 \times 196$

$= \tt615.44 \: {m}^{2}$

Thus, the area of this circle = 615.44 m²

Circumference of circle :

$= \tt2\pi r$

$=\tt 2 \times 3.14 \times 14$

$= \tt87.92 \: m$

The circumference of this circle = 87.92 m

Therefore, the area of this circle = 615.44m² and the circumference of this circle = 87.92m