Question

Calcular el área y el perímetro de un círculo que tiene 50 cm de radio

Answer 1

Area: 7850 square cm

Perimeter: 314 cm.

Explanation:

The area is
`\pi r^(2)`. With r=50,
`\pi 50^(2)`=2500π which is about (2500)(3.14)=7850.

The perimeter is
`2\pi r` which is the same as (diameter)(π). The diameter is 100, so
`100\pi` which is about (100)(3.14)=314.