Question

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

PLZ HELP!!! WILL MARK BRAINLIEST

Answer 1

Answer:

13.56cm

Step-by-step explanation:

circumference= π × diameter

c = 3.14 × 4

c = 12.56cm

Answer 2

circumference is 12.57
Work: C = 2(pi)(r)
C = 2(3.14)(2)

Area is also 12.56
Work: A= pi(r)^2
A = 3.14*2^2
A= 3.14*4
A= 12.57

r was found from dividing the diameter by 2