Transforming Triangle
What is the perimeter of a rectangle formed from an equilateral triangle?
Author Archive for: corrill
Entries by InterMath
Two Squares
Explore the relationship between length and area.
Isosceles Trapezoid
Investigate properties of an isosceles trapezoid.
Equal Sides
Construct an equal-sided quadrilateral inside a trapezoid or other quadrilateral.
Double the Fun
Determine ways to double the dimensions of quadrilaterals.
Optimal Quadrilaterals
Determine the largest area of a quadrilateral for a given perimeter.
Mystery Quadrilaterals
Classify a quadrilateral by making measurements in a dynamic construction.
Quadrilaterals Inscribed Inside Quadrilaterals
Explore properties of quadrilaterals constructed using the midpoints of the sides of given quadrilaterals.
Diagonals of Quadrilaterals
Explore the properties of the diagonals of various quadrilaterals.
Constructing Quadrilaterals 1
Given two parallel lines, form various quadrilaterals.