Question

The diameter of a circle is 13.4 millimeters. What is the circle's area?
Use 3.14 for ​ and round your answer to the nearest hundredth.

Answer 1

$Solution,\\diameter=13.4mm\\radius=13.4mm/2=6.7mm\\Now,\\Area=\pi r^{2} \\Area=3.14 *(6.7mm)^{2} \\Area=3.14*44.89mm^{2} \\Area=140.9546mm^{2}=141mm^{2}$

Hope it will help you a lot.