Question

the circumference of a circle 31.4cm. find the radius and the area of thecircle

Answer 1

$2\pi \: r = 3.14cm \\ 2 \times 3.14 \times r = 3.14 \\ r = 3.14 \div (2 \times 3.14) \\ r = 0.5cm \\ hope \: it \: \: may \: help s \: u....$