Respuesta :

if diameter of a circle is 28cm.find radius & circumference.
HajirahBibi
Answer:

Radius: 14 cm
Circumference: 196 cm²

Explanation:

Formula for

Circumference = πr²

Diameter ÷ 2 = radius


For finding radius:

28 ÷ 2 = 14 cm

For finding circumference:

π(14)²

= 196π cm² or ≈ 615.75 cm²