Question

The area A of a circle is directly proportional to the square of its radius r. If the area of a circle
with a radius of 5 cm is 78.54 cm2
a) What is the value of constant of proportionality k?
b) What is the particular function that relates the area of the circle to its radius?
d Determine the area of a circle with a radius of 12 cm.

Answer 1

Respuesta:

No se si eres de estados unidos pero no entendí bro