![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
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The Area A of a circle is given by the formula,
\Where r is the radius of the circle
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![\"\"](\"/userfiles/image/Library/Circle_pa_24%20_81.gif\")
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![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
The Area A of circle is, ![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a2221dcbd59cd760bc34c92547e4eba3.png\")
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=dfbf93ea4797dfaf49b7e4a88adbd94d.png\")
(Substitute![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=49722377c5ecc674c286501da70d3685.png\")
)
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=06625d41bf78bfd4504e0db07bfa6271.png\")
(Find power;![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=65283480de9e710a08eb7f23d41c0ae7.png\")
)
![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=fd83307dac556656bc6b8a5dff973235.png\")
(Multiply;![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=c5b0bf50b133a2abd8350e170a2fb2a9.png\")
)
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
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The Area A of a circle is![\"\"](\"/MathKey/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=d3d224d4748cdc2f02f66c768c9e236d.png\")