Find the area of a circle 15 ft?

Answer 1

Area_circle = π × radius²

It depends to what the 15 ft refers, if:

• 15 ft is the radius of the circle

area = π × (15 ft)² = 225π sq ft ≈ 707 sq ft

• 15 ft is the diameter of the circle

diameter = radius × 2

→ radius = ½ diameter

→ area = π × (15 ft / 2)² = 225π/4 sq ft ≈ 177 sq ft

• 15 ft is the circumference of the circle

circumference = 2 × π × radius

→ radius = circumference ÷ (2π)

→ area = π × (15 ft / 2π)² = 225/(4π) sq ft ≈ 17.9 sq ft

Answer 2

46

Answer 3

225