A semicircle has a radius of 14 cm. Find the perimeter of the semicircle. (Take π = 22/7.)
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Worked Solution
Step 1: A semicircle's perimeter = curved arc + straight diameter edge.
Step 2: Curved arc = ½ × circumference = ½ × 2πr = ½ × 2 × 22/7 × 14 = 44 cm.
Step 3: Straight edge = diameter = 2 × radius = 2 × 14 = 28 cm.
Step 4: Perimeter = 44 + 28 = 72 cm.
Final: 72 cm.
Answer: 72 cm
Correct answer: 72 cm
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