Seudónimo
Seudónimo
25-05-2018
Mathematics
contestada
Help please on geometry
Respuesta :
Matheng
Matheng
25-05-2018
The area of the sidewalk = total area of fountain and sidewalk - area of fountain
∴ The area of the sidewalk = π (r+w)² - πr²
r = 10 feet , and w = 5 feet
The area of the sidewalk = π (10+5)² - π*(10)² = 225 π - 100π = 125π ≈ 392.7 ft²
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