Answer: A 24 cm piece of string is cut into two pieces , one piece is used to form a circle and the other piece is used to form a square.
How should this string be cut so that the sum of the areas is a minimum .
:
Let x = the circumference of the circle
then
(24-x) = the perimeter of the square
:
Find the area of the circle
find r
2*pi*r = x
r =
Find the area of the circle
A =
A =
A = sq/cm, the area of the circle
:
Find the area of the square
A = sq/cm the area of the square
The total area
At = +
Graph this equation, find the min
Min occurs when x=10.6 cm
cut string 10.6 cm from one end
Step-by-step explanation: Hope I help out alot (-: :-)
2nd one because it’s not a lot of big number I hope it helps
It would be (12,20) or (20,12) I don't know which one
The solution is and
Step-by-step explanation:
The expression is
Multiplying the term by , we get,
Adding both sides by 1,
Taking factor, we get,
Equating the factors to 0,
and
Thus, the smaller value is
The solution is and