Lesson Example Discussion Quiz: Class Homework |
Example |
Title: Area and Perimeter |
Grade: 6-a Lesson: S2-L2 |
Explanation: The best way to understand measurement is by looking at some examples. Take turns and read each example for easy understanding. |
Examples:
Find the height of an equilateral triangle if its perimeter is 103 units.
Step 1a
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To find the height of an equilateral triangle given its perimeter, we can use the formula: Height = \$(\sqrt(3) * "Side Length") / 2\$ |
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Explanation: Here we find the formula. |
Step 1b
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Since the triangle is equilateral, all sides are of equal length. Let’s denote the side length as "s." The perimeter of an equilateral triangle is given by: In this case, the perimeter is given as 103 units. We can set up the following equation: To find the side length, we divide both sides of the equation by 3: \$s = 103 / 3\$ s ≈ 34.3333 |
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Explanation: Here we find the side of the length of the triangle. |
Step 1c
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Now, we can substitute the value of s into the height formula:
\$Height = (\sqrt(3) * 34.3333) / 2\$ |
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Explanation: Here we find the height of the equilateral triangle. |
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