Respuesta :

angstar4
Circumference = 2*pi*r
= 2 * 3.14 * 7
= 43.96 cm

Area = pi * r^2 (pi times radius squared)
= 3.14 * 7^2
= 3.14 * 49
= 153.86 cm^2 (153.86 square centimeters)