find the area of a semicircle whose radius is 12cm?
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Answer:
Mark as brainliest answer.
Step-by-step explanation:
→ Area of circle = πr²
→ Area of semi circle = πr²/2
→ r = 12 cm
→ π = 22/7
→ πr²/2
→ 22/7 × 12 × 12 / 2
→ 3168/7/2
→ 3168/7/2/1
→ 3168/7 × 1/2
→ 3168/14
→ 226.2 cm²
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