Answer:
Circumference: 8πcm
Area: 16πcm²
Step-by-step explanation:
Circumference:
To find the circumference of a circle, use the formula c = 2πr, where r is the radius. Use 3.14 for pi.
r = 4
c = 2πr
c = 2(3.14)r
c = 2(3.14)4
c = 25.12cm
Area: To find the area of a circle, use the formula πr², where r is the radius. Use 3.14 for pi.
r = 4
a = πr²
a = (3.14)r²
a = (3.14)4²
a = (3.14)16cm²
a = 50.24 cm²
