The formula in computing the area of the circle is:
A = pi (r)^2
Where r = the radius of the circle
Since you are only given the diameter of the circle, you
have to solve for its radius. The radius of the circle is half its diameter. Therefore,
the radius of the circle is 5 (10/2).
Now, you substitute the measurements to the formula:
A = 3.14 (5)^2
A = 3.14 (25)
A = 78.5 sq. units
342
Explanation (18*8)+(9*10)+(18*6)
Addition you add and in subtraction you subtract
Soccer buys more; divide each
Soccer- 3/2= 1.5
Volleyball- 7/5=1.4
Soccer buys more balls per player
