We can actually deduce here that if radius, r = 5in., the area of the circle = 78.55in². approx. 79in².
The area of a circle is actually known to be portion of a circle that is enclosed within a radius. When calculating area, the final answer is usually squared.
We see here that to find the area of a circle with radius, r = 5in, where π = 3.142 we will have:
A = π × 5² = 3.142 × 25 = 78.55
= 79in² (to the nearest whole number).
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