Area is the amount of surface space that a flat object has. Area is reported in the amount of square units.

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Presentation transcript:

Area is the amount of surface space that a flat object has. Area is reported in the amount of square units.

When you measure the amount of carpet to cover the floor of a room, you measure it in square units. Would the area of your bedroom or the area of your house be greater? You’re right! The area of your house is greater than the area of your bedroom.

Area = 15 square feet Lets find the area of this surface if each square is equal to one foot. Count the number of squares

Count the number of green squares to determine the area of this surface. What is the area? The area is equal to 9 square units. Try this one!

Formula for Area The formula for calculating area in a quadrilateral is length times width. You may see the formula written this way: A= L x W So, the area of this square is: 4 in L= 4 in W= 4 in A = 4 x 4 = 16 in squared

What is the Area of this Rectangle? 6 in 9 in A= L x W A= 6 x 9 A= 54 inches squared

What is the Area of this Parallelogram? 5 cm A= L x W A= 5 x 5 A= 25 cm squared

Perimeter is the distance around the outside edge of a flat object. Perimeter is reported as a total number of linear units.

When you measure the amount of wallpaper border to go around a room, you measure it in lengths. Would the perimeter of your bedroom or the perimeter of your house be greater? You’re right! The perimeter of your house is greater than the perimeter of your bedroom.

Perimeter = 24 feet Let’s find the perimeter of this surface if each square is equal to one foot. Count the number of sides.

Count the number of sides to determine the perimeter of this flat object. The perimeter is equal to 12. Try this one!

Two neighbors build swimming pools. This is what the pools look like. Family A Family B Which family has the pool with the bigger swimming area? Let’s do these problems together.

Area Game Video: Game: