Answer:
Circumference and Area of a Circle
A. Find the circumference of each circle.
Given: 2.5 centimeters
Formula: C = 2πr
[tex]\sf{C = 2πr}[/tex]
[tex]\sf{C = 2(3.14)(2.5)}[/tex]
[tex]\sf{C = 6.28(2.5)}[/tex]
[tex]\boxed{\sf{C = 15.625 \: cm}}[/tex]
B. Find the area of each circle.
Given: 10 centimeters
Formula: A = πr²
[tex]\sf{A = πr²}[/tex]
[tex]\sf{A = 3.14 (10 cm)²}[/tex]
[tex]\sf{A = 3.14 (100 cm²)}[/tex]
[tex]\boxed{\sf{A = 314 cm²}}[/tex]
