Question

Find the area of the circle use 3.14 for pie do not round your answer

Answer 1

The area is:

12.56 in²

Work/explanation:

The formula for the area of a circle is:

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

Where

A = area

π = 3.14

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 2\ in}\end{picture}`

Plug in the data:

`\sf{A = 3.14 * 2^2}`

`\sf{A = 3.14 * 4}`

`\sf{A = 12.56\:in^2`

Hence, the answer is 12.56 in².

Answer 2

Area= 12.56 inches²

Explanation:

To find the area of a circle:

A= πr²

A= 3.14 × 2²

A= 3.14 × 4

A= 12.56 inches²

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