Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Computing Perimeter of Rectangle |
Grade: 2-a Lesson: S1-L7 |
Explanation: The best way to understand geometry is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
Calculate the perimeter of a rectangle with a length(l) of 5 cm and a width(w) of 2 cm?
Step 1a
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Given length(l) is 5 cm and width(w) is 2 cm. |
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Explanation: The length of the object is 5 cm and its width is 2 cm. |
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Step 1b
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The formula perimeter of a rectangle is 2(l + b). Substiute the values : \$2(5 + 2) = 2(7) = 14 cm\$. |
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Explanation: To find a rectangle’s perimeter, multiply the sum of its length and width by 2. For instance, a rectangle with length of 5 cm and width of 2 cm has a perimeter of 14 cm. |
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Step 1c
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Therefore, the perimeter of a rectangle is 14 cm. |
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Explanation: The measurement of the rectangle’s perimeter is 14 cm. |
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