Answer:
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1) The area, in terms of "π" , is: " 1π in.² " .
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2) The area, using the approximation of "3.14" for "π" , is: " 3.14 in.² " .
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Explanation:
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The formula/equation of the area of a circle, "A":
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A = π * r² ;
in which π ≈ 3.14 ;
A = Area;
r = length of radius = 1 in. (given).
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To find the area, take our known values, and plug them into the formula to find our answer:
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1) To solve for the Area, in terms of "π" ;
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A = π * r² = π *(1 in.) ² = π * 1 in² ;
A = 1π in.² .
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2) To solve for Area, using the approximation of "3.14" for "π" :
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A = π * r² ;
A ≈ (3.14) * (1 in.)² = (3.14) * (1²) * (in.²) ;
= (3.14)*(1)*(in.²) ;
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A ≈ 3.14 in.²
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