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

Area: 7850 square cm

Perimeter: 314 cm.

Step-by-step explanation:

The area is . With r=50, =2500π which is about (2500)(3.14)=7850.

The perimeter is which is the same as (diameter)(π). The diameter is 100, so which is about (100)(3.14)=314.

0.6

39mph

step-by-step explanation:

-22

times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3