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Find the area of a circle with diameter 18 cm.

User Yoonah
by
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2 Answers

2 votes
Answer:254.5 Cm or 2.545E-8 km or 39.45in
User Heeju
by
3.0k points
3 votes

Answer:

Area = 254.34 cm² or 81π

Explanation:

Area = πr²

Radius (r) = 18 ÷ 2 = 9

π = 3.14

Area = (3.14)(9)²

Area = (3.14)(81)

Area = 254.34 cm²

User Loki Kriasus
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3.6k points