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Find the approximated area of a circle whose radius is 7.8 cm.

Find the approximated area of a circle whose radius is 7.8 cm.-example-1
User Onkelborg
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Take into account that the area of a circle is given by:


A=\pi r^2

where,

r: radius = 7.8cm

π = 3.14

Replace the previous values of the parameters and simplify:


A=(3.14)(7.8cm)^2\approx191.13cm^2^{}

Hence, the area of the circle is approximately 191.13cm^2

User Bradley Mountford
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