Question 20 of 29beginner🔧 ApplyNumerical2 marks

If the perimeter of a regular polygon with 12 sides is 208.8 cm, what is the length of its side?

Correct Answer

Given: Perimeter = 208.8 cm Number of sides = 12

Formula: Length of side = Perimeter ÷ Number of sides

Substitution: Length of side = 208.8 ÷ 12

Calculation: Length of side = 17.4 cm

Answer: The length of each side is 17.4 cm.

Exercise: Figure it Out (Section 3) | Q: 7 | (Page Page 21)
For More Understanding

Explanation

A regular polygon has all sides equal. The perimeter is the sum of all sides, so divide the perimeter by the number of sides.

Solution Steps

  1. Perimeter = 208.8 cm

  2. Number of sides = 12

  3. Length of side = Perimeter ÷ Number of sides

  4. Length of side = 208.8 ÷ 12 = 17.4 cm

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