
Nelson EducationSchoolMathematics 7  
Surf for More MathLesson 5  Exploring the Area and Perimeter of a Trapezoid
Use this activity to encourage students to have fun on the Web while exploring the area and perimeter of a trapezoid. Students can try this activity on their own or in pairs. GoalExplore the relationship between the area and the perimeter of a trapezoid. Builds UponStudent Book pages 170171 Instructions for UseTrapezoid Perimeter and Area helps students understand the formula for the area of a trapezoid. To use Trapezoid Perimeter and Area, drag the pink dots to change the dimensions of the trapezoid. Notice the changes in perimeter and area as the dimensions change. The area of the trapezoid is the sum of the area of two triangles formed by the trapezoid's diagonal. 

