Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Perimeter of Traiangle |
Grade: 8-a Lesson: S1-L3 |
Explanation: The best way to understand algebra is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
Find the perimeter of an equilateral triangle. The length of two sides of the triangle (a) is 30 cm, and the base is 8 cm.
Step 1a
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Given, length = 30 cm base = 8 cm |
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Explanation: The length is 30 cm and the base measures 8 cm. |
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Step 2a
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Perimeter of equilateral triangle (P) = 2a + b |
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Explanation: The formula for finding the perimeter of an equilateral triangle is P = 2a + b. |
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Step 3a
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Therefore, the perimeter of the equilateral triangle is 68 cm. |
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Explanation: To find the value of P, we substitute 30 for the variable and solve the equation 2(30) + 8, which results in P being equal to 68 cm. |
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