Geometry Notes - ASU

← Back to document page

Geometry Notes Perimeter and Area Page 1 of 57 PERIMETER AND AREA Objectives: After completing this section, you should be able to do the following: Calculate the area of given geometric figures. Calculate the perimeter of given geometric figures. Use the Pythagorean Theorem to find the lengths of a side of a right triangle. Solve word problems involving perimeter, area, and/or right triangles. Vocabulary: As you read, you should be looking for the following vocabulary words and their definitions: polygon perimeter area trapezoid parallelogram triangle rectangle circle circumference radius diameter legs (of a right triangle) hypotenuse Formulas: You should be looking for the following formulas as you read: area of a rectangle area of a parallelogram area of a trapezoid area of a triangle Heron s Formula

the base of the parallelogram and is perpendicular to both the top and the base. In the case of a rectangle, this is the same as one of the sides of the rectangle that is perpendicular to the base. Example 3: Find the area of the figure below 15 6 15 Solution: In this figure, the base of the parallelogram is 15 units and the height is 6 units.

  Perpendicular