Question

What is the approximate area of a circle with a radius of 15ft?

Answer 1

A ≈ 706.5 ft²

Explanation:

A = πr²

A = 3.14 × 225 ft²

A ≈ 706.5 ft²

Answer 2

Area

There's a formula for the area of a circle. That formula is:

`\sf{A=\pi r^2}`

Where:

• A = area
• π = pi
• r = radius

Diagram:

`\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\qbezier(2.3,0)(2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,-2.121)(0,-2.3)\qbezier(2.3,0)(2.121,-2.121)(-0,-2.3)\put(0,0){\line(1,0){2.3}}\put(0.5,0.3){\bf\large 15\ cm}\end{picture}`

Plug in the data:

• 
  `\sf{A=\pi*15^2}`
• 
  `\sf{A=\pi*225}`
• 
  `\sf{A=706.86\:ft^2}`

Hence, A = 706.86 ft

`\rule{350}{4}`

`\frak{-Dream-}`