Finding Perimeter Step 1 Setup the Problem…LABEL ALL SIDES! 20 ft 15 ft 20 ft Perimeter – the distance around the outside edge of a shape or object.

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Presentation transcript:

Finding Perimeter Step 1 Setup the Problem…LABEL ALL SIDES! 20 ft 15 ft 20 ft Perimeter – the distance around the outside edge of a shape or object

Finding Perimeter Step 2 Find the Formula…Write it down! P = s + s + s + s …

Finding Perimeter Step 3 Solve the Problem P = s + s + s + s P = P = P = P = 70 ft

Finding Area Step 1 Setup the Problem…LABEL ALL SIDES! 20 ft 15 ft 20 ft Area – the amount of surface space inside a shape or object, measured in square units

Finding Area Step 2 Find the Formula…Write it down! A = bh A = lw

Finding Area Step 3 Solve the Problem A = l  w A = 20  15 A = 300 ft 2

Practice Problems Be sure to use the formulas for area and perimeter to help you make connections. If a square cake plate has an area of 100 square centimeters, what is its perimeter? What could be the perimeter of a rectangle with an area of 42 inches?