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- TOPIC: PERIMETER AND AREA Our Aims With this software, we hope to a) give variety in teaching-learning process. New Software® ™ b) enhance pupils’ understanding through ex Dynamic Slide’ interactive learning. c) expose pupils with the use of ICT. Done by: 1) Cikgu Sitti Khatijah Patingo 2) Cikgu Norhaziah Mohd.Hardi 3) Cikgu Siti Haslina Hj.Hidup Loading…………please standbyCopyright® May 2006SEKOLAH RENDAH PSB SOAS, KUALA BELAITMathematics Software Version 1.0
- MAIN MENUIntroduction to perimeter Introduction to areaPerimeter of a square Area of a squarePerimeter of a rectangle Area of rectangle HOT QUIZ TO TRY! P
- INTRODUCTION TO PERIMETER• WHAT IS A PERIMETER? Answer: It is the distance all around the shape. Click here 4m A 3 cm B 2m 3 cm I’m moving around The blue line is called The red line is Perimeter ofClick me! the figure figure B Bknown as Perimeter
- INTRODUCTION TO PERIMETER• Let us see another example of figure C below: Put a string around the figure Click Use the ruler to measure the string Measure Figure C The rope is 11.1 cm long. We say that the perimeter of the figure C above is 11.1 cm MAIN MENU
- PERIMETER OF A SQUARE• WHAT IS A SQUARE ? - A square is a shape with all sides are equal. Click - Opposite sides are parallel. Click - All angles are right angles. Click 3 cm Each side of this square is 3 cm. 90° 90° The two red line and3 cm 3 cm the two green line are opposite and parallel to each other. 90° 90° All the angles are 90° 3 cm
- PERIMETER OF A SQUARE• HOW TO CALCULATE THE PERIMETER OF A SQUARE ? First, look at the value of each side of the square. Click The value for each side is 3 cm Then, add all the values together. Click 3 cm Calculation 3 cm + 3 cm + 3 cm + 3 cm = 12 cm From this calculation, we can say that:-3 cm 3 cm PERIMETER OF SQUARE = 4 X SIDE = 4 X 3 cm = 12 cm 3 cm MAIN MENU
- PERIMETER OF A RECTANGLE • WHAT IS A RECTANGLE? - A rectangle is a shape with opposite sides are equal. Click - Opposite sides are parallel. Click - All angles are right angles. Click The length is 4 cm and 4 cm the breadth is 2 cm. 90° 90° The two blue lines and the two yellow lines are2 cm 2 cm parallel and opposite of 90° 90° each other. 4 cm All the angles are 90°.
- PERIMETER OF A RECTANGLE How to calculate the perimeter of a rectangle? First, look at the value of each side of the rectangle. Click • The length is 4 cm and the breadth is 2 cm. Then, add all the values together. Click 4 cm Using formula, PERIMETER OF RECTANGLE2 cm 2 cm = 2 X ( LENGTH + BREADTH ) = 2 X ( 4 cm + 2 cm ) = 2 X 6 cm = 12 cm 4 cm Calculation 2 cm + 4 cm + 2 cm + 4 cm The answer is 12 cm MAIN MENU
- INTRODUCTION TO AREA • WHAT IS A AREA? Answer: It is the space occupied by a figure. It is measure in square unit example: cm², m². Click 3 cm 4m B 2m3 cm A The blue region is the Click me of figure B area The red region is called Area MAIN MENU
- AREA OF A SQUARE• HOW TO CALCULATE THE AREA OF A SQUARE ? - This square is made up of 1 cm by 1cm squares. Click - The space covered: 1 cm by 1 cm is equal to 1 cm². Click - The square is made up of nine 1 cm². Click 1 cm1 cm 1 1 cm² 1 2 cm 3 The space occupied by the square 1 cm is equal 9 cm². 6 5 4 This known as its AREA. 7 8 9
- AREA OF A SQUARE• CALCULATE THE AREA OF A SQUARE BY FORMULA First, look at the value of the two sides of the square. Click Then, multiply the values together. Click Calculation 3 cm x 3 cm = 9 cm² The area is 9 cm² which is3 cm the same as the previous example This calculation shows that, AREA OF SQUARE = SIDE X SIDE 3 cm MAIN MENU
- AREA OF A RECTANGLE• How to calculate the area of rectangle? - Look at the rectangle below, it is made up of 8 squares. Click - Each square has an area of 1 cm². Click 1 1 1 cm² 1 cm² 1 4 cm² 2 3 cm² There are 8 squares inside the rectangle. 5 6 7 8 1 cm² 1 cm² 1 cm² 1 cm² Therefore, the total area of the rectangle is 8 cm².
- AREA OF A RECTANGLE• CALCULATE THE AREA OF A RECTANGLE USING FORMULA Look at the value of breadth and length of the rectangle. Click The breadth is 2 cm and the length is 4 cm. Then, multiply both value together. Click 4 cm The area of the rectangle is 8 cm²2 cm This calculation shows that, AREA OF RECTANGLE = LENGTH x BREADTH Calculation 2 cm x 4 cm = 8 cm² MAIN MENU
- Try this out! EXIT

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