1. Tool Bag Formulas, equations, Vocabulary, etc. Here’s How…Notes & Examples Title: Name Date Period Objectiveto find the perimeter and area of triangles and trapezoids 9-2: Perimeter and Area of Triangles & Trapezoids Standard MG 2.1 – Use formulas to find perimeter and area of basic two-dimensional figures Example #1 find the perimeter of the trapezoid: 8 8 10 14 Perimeter = P = 8 + 10 + 8 + 14 = 40 Example #2 find the area of the following triangle: h b Area of a parallelogram = b h Two Triangles make the parallelogram Area of 1 Triangle = ½ area of parallelogram Area of Triangle = ½ b h

2. Tool Bag Formulas, equations, Vocabulary, etc. Here’s How…Notes & Examples Title: Name Date Period You Try 9-2: Perimeter and Area of Triangles & Trapezoids find the area of the following triangle: 6 14 Example #3 find the area of the following trapezoid: b 2 b 1 h b 2 b 1 Area of a parallelogram = b h Area of a parallelogram = ( + ) h b 1 b 2 Area of a trapezoid = ½ ( + ) h b 1 b 2

3. Tool Bag Formulas, equations, Vocabulary, etc. Here’s How…Notes & Examples Title: Name Date Period You Try 9-2: Perimeter and Area of Triangles & Trapezoids find the area of the following trapezoid: 16 12 6