 # AREAS GRADE 3. Hello, How are you doing? Today, we are going to start a new lesson on Areas.

## Presentation on theme: "AREAS GRADE 3. Hello, How are you doing? Today, we are going to start a new lesson on Areas."— Presentation transcript:

copyright@Ed2netLearning,Inc2 Hello, How are you doing? Today, we are going to start a new lesson on Areas.

copyright@Ed2netLearning,Inc3 Area Area is defined as the number of square units needed to cover a region or figure.

copyright@Ed2netLearning,Inc4 Rules to find the area of Regular figure Find the area of the square tiles.  The figure indicates 1 square unit for each square tile.  Count the total number of square units.  There are 4 tiles. So, the area of the figure is 4 square units.

copyright@Ed2netLearning,Inc5 To find the area of the irregular figure. Step 1: Separate the irregular figure into 2 rectangles. Count the number of square tiles in the larger rectangle. Step 2: Count the number of tiles in the smaller rectangle. Step 3: Add the number of squares in each rectangle to find the area of irregular figure.

copyright@Ed2netLearning,Inc6 Find the area of the figure given below. Answer- Area of bigger rectangle = 8 square units Area of smaller rectangle = 2 square units Area of the figure = 8 + 2 = 10 square units Each square indicates 1 unit.

copyright@Ed2netLearning,Inc7 If a square has an area of 16 square units, how many rows and columns of squares does it have? Answer- 4 rows and 4 columns

copyright@Ed2netLearning,Inc8 What is the area of the rectangle having 4 rows and 9 columns? Answer – 36 square units

copyright@Ed2netLearning,Inc9 Let us practice some problems now!

copyright@Ed2netLearning,Inc10 Find the area of the figure given below. Answer – 10 square units.

copyright@Ed2netLearning,Inc11 Which is greater for the given figure? Area or perimeter Answer - Area 3 cm 20 cm

copyright@Ed2netLearning,Inc12 What is the area of the square of side 2 feet? a) 4 feet b) 4 square c) 4 square feet d) None of these

copyright@Ed2netLearning,Inc13 Which is true about the area? a) Area is the sum of the sides of the figure b) It is not possible to find the area of the square. c) Both a and b d) None of these

copyright@Ed2netLearning,Inc14 A room in the Howard’s house is 25 m long and 15 m wide. Find the area of the room. Answer – 375 square units

copyright@Ed2netLearning,Inc16 1.Find the area of the figure given below. Answer – 7 square units

copyright@Ed2netLearning,Inc17 2.Find the area of the room having length of 20 m and width of 15 m? Answer – 300 square meter

copyright@Ed2netLearning,Inc18 3.If the cost of leveling 1 square meter is \$10, what is the cost of leveling the room? Answer - \$3,000

copyright@Ed2netLearning,Inc19 4.The Public Library is 300 m long and 100 m wide. What is the area of the library? Answer – 30,000 square meter

copyright@Ed2netLearning,Inc20 5.Find the area of small square shaded in the figure given below. Answer – 4 square units

copyright@Ed2netLearning,Inc21 6.What is the difference in the large square and the small square? Answer- 8 square units

copyright@Ed2netLearning,Inc22 7.Find the area of square of side 8 cm. Answer - 64 square meter

copyright@Ed2netLearning,Inc23 8.Find the area of the rectangle given below. a) 18 square cm b) 24 square cm c) 80 square units d) 80 square cm 20 cm 4 cm

copyright@Ed2netLearning,Inc24 9.Find the area of the shaded region. a) 1 unit b) 1 square unit c) 9 units d) 9 square units

copyright@Ed2netLearning,Inc25 10.Find the area in square units. a) 12 square units b) 24 square units c) 6 square units d) None of these

copyright@Ed2netLearning,Inc26 Recap  Area  Rules to find Area of regular figure  Rules to find area of the irregular figure  Solved Examples  Practice Problems

copyright@Ed2netLearning,Inc27 Well Done! Now Practice worksheets on the Lesson.

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