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5 Minute Check. Find the area. Complete in your notebook. 1. 6in 9in.

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Presentation on theme: "5 Minute Check. Find the area. Complete in your notebook. 1. 6in 9in."— Presentation transcript:

1 5 Minute Check

2 Find the area. Complete in your notebook. 1. 6in 9in

3 5 Minute Check Find the area. Complete in your notebook. 1. 6in 9in 9 in · 6in = 54 in²

4 5 Minute Check Find the area. Complete in your notebook ft 2.5ft

5 5 Minute Check Find the area. Complete in your notebook ft 2.5ft 13.5 ft · 2.5 ft = ft²

6 5 Minute Check Find the area. Complete in your notebook cm cm

7 5 Minute Check Find the area. Complete in your notebook. 1.2 cm · 9.8 cm = cm² cm cm

8 5 Minute Check

9

10 Flashcards

11 Tuesday, Feb 4 Chapter 9.1 Area of Parallelograms

12 Objective: To find the area of parallelograms.

13 Area of Parallelograms At the end of this lesson you should be able to answer the following question. How are parallelograms related to rectangles?

14 Area of Parallelograms A polygon is a closed figure formed by 3 or more straight lines.

15 Area of Parallelograms A polygon is a closed figure formed by 3 or more straight lines. A quadrilateral is a polygon with 4 sides.

16 Area of Parallelograms A parallelogram is a quadrilateral with opposite sides parallel and equal in length.

17 Area of Parallelograms A rhombus is a parallelogram with all equal sides.

18 Area of Parallelograms The area A of a parallelogram is the base b multiplied by the height h. A = bh The base and height must be perpendicular to each other. Connected by a 90˚ angle. h b

19 Area of Parallelograms A formula is an equation that shows a relationship among certain quantities. The formula to find the area of a parallelogram is A = bh

20 Area of Parallelograms What is the area of the parallelogram?

21 Area of Parallelograms What is the area of the parallelogram? A =bh b = ?

22 Area of Parallelograms What is the area of the parallelogram? A =bh b = 6 h = ?

23 Area of Parallelograms What is the area of the parallelogram? A =bh b = 6 h = 8 What is the area?

24 Area of Parallelograms What is the area of the parallelogram? A =bh b = 6 h = 8 What is the area? A = 6 · 8 = 48 units² or 48u²

25 Area of Parallelograms What is the area of the parallelogram? Do this on your own.

26 Area of Parallelograms What is the area of the parallelogram? b = 20cm h = 11cm A = 11cm · 20cm = 220cm²

27 Area of Parallelograms What is the area of the parallelogram? Do this on your own.

28 Area of Parallelograms What is the area of the parallelogram? b = 4m h = 16m A = 4m · 16m = 64m²

29 Area of Parallelograms What is the area of the parallelogram? Do this on your own.

30 Area of Parallelograms What is the area of the parallelogram? b = 2.6m h = 5.1m A = 2.6m · 5.1m = 13.26m²

31 Area of Parallelograms What is the area of the parallelogram? Do this on your own.

32 Area of Parallelograms What is the area of the parallelogram? b = 9 ft h = 18 ft A = 166.5ft²

33 Area of Parallelograms Romilla is painting a replica of the national flag of Trinidad and Tobago for a research project. Find the area of the black stripe. Do this on your own.

34 Area of Parallelograms

35 Find the area of the shaded region. Do this on your own.

36 Area of Parallelograms Find the area of the shaded region. Area of the rectangle 25 · 11 = 275ft² Area of the parallelogram 4 · 12 = 48ft² The area of the shaded region is the area of the rectangle minus the area of the parallelogram, 275ft² - 48ft² = 227ft²

37 Area of Parallelograms Find the area of the shaded region. Do this on your own.

38 Area of Parallelograms Find the area of the shaded region. 15 · 8 – 6 · 6 = 84cm²

39 Area of Parallelograms How are parallelograms related to rectangles?

40 Area of Parallelograms Agenda Notes Homework– Homework Practice 9-1 Due Wednesday, Feb 5 Mid-Chapter 9 Quiz –Friday, Feb 7


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