Question

Find the circumference and the area of a circle with diameter 4 cm.
Use the value 3.14 for it, and do not round your answers. Be sure to include the correct units in your answers.

Answer 1

Answer:

Circumference =12.56cm

area= 12.56 square cm

Step-by-step explanation:

circumference,c,

c=πD, where D is the diameter

c=3.14*4

c=12.56cm

Area

Area=πr^2 and r=D/2 =4/2 =2cm

Area=3.14*4=12.56 square cm