Question 727869
1. The area of a rectangle is calculated by multiplying length times width.
The area of the rectangular piece of wood is
{{{(15inches)*(20inches)=highlight(300)}}}{{{square}}}{{{inches}}}
 
2. The area of a circle is calculated by multiplying the irrational number {{{pi}} times the suaqre of the radius of the circle.
The area of the circle is
{{{pi*(5inches)^2=highlight(25pi)}}}{{{square}}}{{{inches}}}
That is {{{highlight(78.54)}}}{{{square}}}{{{inches}}} when rounded to 2 decimal places.
 
3. The area of the wood piece left over, in square inches, is
{{{300-78.54=221.46}}}. The amount of wood left over after cutting out the circle is {{{highlight(221.46)}}}{{{square}}}{{{inches}}}