Area & Perimeter

SHAPE OVERVIEW Rectangle Triangle Hexagon Trapezoid Square Parallelogram Pentagon Circle

Perimeter of a Rectangle To calculate the perimeter of an object or space, you will need to add up all of the outside measurements = ________ 2 4

Try to find the perimeter of these rectangles

Find the perimeter of these squares

Find the perimeter of these triangles

Tricky Perimeters (Look carefully.) You will need to remember which sides to add and the values for each side

AREA You will use different formulas for each type of shape when finding area You will use different formulas for each type of shape when finding area Each answer will require you to use the measurement given, and it will always be squared…ex.) 9 ft. 2 Each answer will require you to use the measurement given, and it will always be squared…ex.) 9 ft. 2

Area of a Rectangle A = L x W The area formula for a rectangle is length x width L W

Find the area of these rectangles

Area of a Square A = S x S You find the area of a square by multiplying the side by itself. S

Find the area of these squares

Area of a Triangle Finding the area of a triangle is different. A = ½ (B x H) H B

Find the area of these triangles

AREA OF A PARALLELOGRAM A = B x H A = B x H (base x height) (base x height) H B

Find the area of these parallelograms

AREA OF A TRAPEZOID A = ½ H (b 1 + b 2 ) A = ½ H (b 1 + b 2 ) ½ Height (base 1 + base 2) ½ Height (base 1 + base 2) B2B2 H B1B1

Find the area of the trapezoids