Question

Find the circircumference a circle whose diameter is 2.5 CM

Answer 1

`$\fbox{Hello Answer}$`

$given \\ radius = 2.5cm \\ \\ circumference \: of \: circle = \\ 2 \pi \: r \\ 2 \times \frac{22}{7} \times 2.5/2 \\ \frac{44}{7} \times 2.5 \\ = 7.857cm$

Answer 2

Diameter =2.5 Radius =2.5/2 Circumference= 2×22/7×2.5/2=7.857.. I think it is correct