Area and Perimeter of Polygons

The video tutorial explains how to find the perimeter and area of a polygon. It begins by defining the perimeter as the sum of all side lengths and demonstrates how to determine missing side lengths. The perimeter is calculated by adding the lengths of all sides. For the area, the tutorial suggests breaking the polygon into rectangles or subtracting extra areas from a larger rectangle. The area is calculated by finding the area of a large rectangle and subtracting the area of an extra rectangle, resulting in the polygon's area.

What is the first step in finding the perimeter of a polygon?

• Sum the lengths of all sides

• Multiply the lengths of all sides

• Subtract the lengths of all sides

• Divide the lengths of all sides

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CCSS.4.G.A.2

If one side of a polygon is 6 meters, what can be inferred about its opposite side?

• It is 3 meters

• It is 9 meters

• It is also 6 meters

• It is 4 meters

How do you determine the length of a side if the opposite side is 9 meters and two other sides are 2 meters and 3 meters?

• The side is 5 meters

• The side is 4 meters

• The side is 6 meters

• The side is 3 meters

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CCSS.3.MD.D.8

What is the perimeter of the polygon if the side lengths are 2m, 3m, 4m, 3m, 3m, 6m, 9m, and 6m?

• 34 meters

• 36 meters

• 38 meters

• 40 meters

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CCSS.6.G.A.1

Which method is suggested as easier for finding the area of the polygon?

• Dividing into triangles

• Using the trapezoid method

• Subtracting the area of a smaller rectangle from a larger one

• Using the circle method

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CCSS.4.MD.A.3

CCSS.3.MD.C.7B

What is the area of a rectangle with a length of 9 meters and a width of 6 meters?

• 54 square meters

• 45 square meters

• 48 square meters

• 60 square meters

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CCSS.3.MD.C.7D

What is the area of the extra rectangle that needs to be subtracted?

• 14 square meters

• 16 square meters

• 12 square meters

• 10 square meters

What is the final area of the polygon after subtracting the extra rectangle?

• 46 square meters

• 42 square meters

• 44 square meters

• 40 square meters

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

What is the formula for the area of a rectangle?

• Length / Width

• Length * Width

• Length - Width

• Length + Width

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CCSS.3.MD.C.5A

How many square meters will fit inside the given polygon?

• 43 square meters

• 41 square meters

• 42 square meters

• 40 square meters

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CCSS.3.MD.C.5A