Tag Archives: area

Two Squares

If the vertices of square are the midpoints of the edges of square , then what is the ratio of the area of square to square ? Source: NCTM Mathematics Teacher, September 2006 Solution The diagonal of square divides square … Continue reading

Posted in Problem solving | Tagged , , , , , , , , , | Leave a comment

Area of a Disc

If the area of a disc inscribed in a square is square centimeters, what is the area of the square? Source: NCTM Mathematics Teacher, September 2006 Solution Area of disc = Area of square = Answer: square centimeters

Posted in Problem solving | Tagged , , , , , , | Leave a comment

Length of Side of Square

If the numerical value of the area of a square plus two times the numerical value of its perimeter is equal to , what is the length of one side of the square? Source: NCTM Mathematics Teacher, September 2006 Solution … Continue reading

Posted in Problem solving | Tagged , , , , , , | Leave a comment

Biggest Pizza Slice

An 8-inch pizza is cut into equal slices. A 10-inch pizza is cut into equal slices. A 12-inch pizza is cut into equal slices. A 14-inch pizza is cut into equal slices. From which pizza would you take a slice … Continue reading

Posted in Problem solving | Tagged , , , , | Leave a comment

Spring Garden

Each spring, a meter by meter garden has its length increased by meters but its with decreased by centimeters. What will be the maximum attainable area of the garden? Source: NCTM Mathematics Teacher, October 2006 Solution Area in square meters … Continue reading

Posted in Problem solving | Tagged , , , , | Leave a comment

Rectangle Inside a Square

An isosceles right triangle is removed from each corner of a square piece of paper so that a rectangle remains. What is the length of a diagonal of the rectangle if the sum of the areas of the removed pieces … Continue reading

Posted in Problem solving | Tagged , , , , , , , , , | Leave a comment

Absolute Value Function

What is the area of the region bounded by the graph of ? Source: NCTM Mathematics Teacher, October 2006 Solution If and If and If and If and The four graphs intersect and form a square of side length . … Continue reading

Posted in Problem solving | Tagged , , , , , , , | 1 Comment

Circular Garden

Ebru’s backyard is a square with side length of meters. Her backyard has a circular garden that extends to each side of the yard. In the center of the garden is a square patch of asparagus so big that each … Continue reading

Posted in Problem solving | Tagged , , , , , , | Leave a comment

Area of Triangle

Without using Heron’s formula, find the area of the triangle. Source: NCTM Mathematics Teacher, January 2006 SOLUTION Applying the Law of Cosines Area of triangle Answer: square units Alternative solution 1 Most textbooks state the Law of Sines as We have … Continue reading

Posted in Problem solving | Tagged , , , , , , , , , , | Leave a comment

Square in Circle

A square of maximum area is inscribed in a semicircle as shown. What percent of the area of the circle is outside the square? Source: NCTM Mathematics Teacher, January 2006 SOLUTION area of circle = area of square = area … Continue reading

Posted in Problem solving | Tagged , , , , , , , , | Leave a comment