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Example1

Title: Perimeter of Triangle(based on sides)

Grade 4+ 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

Topics → Definition Example1

If the perimeter of an equilateral triangle is 96 cm, then find the length of each side.

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Step: 1

The perimeter of an equilateral triangle is calculated using the formula P = 3a, (a is the length of each side), given that the perimeter(P) of the triangle is 96 cm.

Now, we have to find the length of the side by using the formula: 96 = 3a

Explanation:

Perimeter of an equilateral triangle(P) = 3a, where 'a' is the length of each side.

Using the formula 96 = 3a, we can find the length of the side.

Step: 2

Divide 3 on both sides of the equation:

⇒ \$96/3 = 3a/3\$

⇒ 32 = a

So, the length of each side in an equilateral triangle is 32 cm.

Explanation:

Divide 3 on both sides: \$96/3 = 3a/3\$

Therefore, each side of the equilateral triangle measures 32 cm.