If the circumference of a circle if 188.4cm what is the area, radius, diameter?

Question

Need some help?haha please?

Answer 1

Circumference of crcle = pi*d

We know that pi = 3.14

188.4 = 3.14*d

Divide to each side by 3.14.

188.4/3.14 = 3.14*d/3.14

60 = d

Diameter = 60cm

We know that r = d/2

r = 60/2

Radius of circle = 30cm

Area of circle = pi *r^2

= 3.14*30*30

= 3.14*900

Area of circle = 2826 squre cm