Finding Areas of Polygons and Composite Figures

How do you find the area of a rectangle?

• Half the base times the height

• Length times width times height

• Base times height

• Length plus width

Tags

CCSS.6.G.A.1

What is a polygon?

• A closed plane figure formed by three or more line segments that intersect only at their endpoints

• A figure with only two sides

• A shape with curved sides

• A three-dimensional object

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

What is the area of a triangle with a base of 4 cm and a height of 3 cm?

• 7 cm squared

• 6 cm squared

• 12 cm squared

• 8 cm squared

Tags

CCSS.3.MD.C.7D

How can you find the area of a composite figure?

• By adding the areas of the basic shapes it consists of

• By multiplying the dimensions of the outermost shape

• By subtracting the smaller shape from the larger shape

• By dividing the figure into smaller parts and finding the sum of their areas

Tags

CCSS.3.MD.C.7D

What method can be used to find the area of a shape that looks like an envelope?

• Ignoring the triangle part

• Calculating the area as if it were a circle

• Only using addition

• Using subtraction to find the missing piece

Tags

CCSS.3.MD.C.7D