Answer: The diameter is 20 units, the circumference is [tex]20\pi[/tex] or about 62.83, and the area is [tex]100\pi[/tex] or about 314.16
Step-by-step explanation:
To get the diameter, you can mutiply the radius by 2. (10*2= 20)
To get the circumference, you can use the equation [tex]2\pi r[/tex], substituting r for the radius. For an exact answer, use pi. For an approximate, do only 2 times the radius and append pi to the answer ([tex]20\pi[/tex]).
To get the area, you can use the equation [tex]\pi r^2[/tex], substituting r for the radius. For an exact answer, use pi. For an approximate, do only the radius squared ([tex]100\pi[/tex]).
