Answer:
1. 70.1221 square inches (in²)
2A circle of radius = 65 or diameter = 130 or circumference = 408.4 cm has an area of: 1.327 × 10-6 square kilometers (km²) 1.327 square meters (m²)
3. 2.124 × 10-9 square kilometers (km²)
4.The area of a circle is pi times the radius squared (A = π r²).
5.175.77 square inches (in²)
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Answer:
1. 70.1221 square inches (in²)
2A circle of radius = 65 or diameter = 130 or circumference = 408.4 cm has an area of: 1.327 × 10-6 square kilometers (km²) 1.327 square meters (m²)
3. 2.124 × 10-9 square kilometers (km²)
4.The area of a circle is pi times the radius squared (A = π r²).
5.175.77 square inches (in²)