A circle has a diameter of 8 millimeters. What are the circumference and area of the circle? Use three point one four for pi. Round to the nearest tenth.

twelve point six millimeters; two hundred one square millimeters

twenty-five point one millimeters; two hundred one square millimeters

twelve point six millimeters; fifty point two square millimeters

twenty-five point one millimeters; fifty point two square millimeters

Question

A circle has a diameter of 8 millimeters. What are the circumference and area of the circle? Use three point one four for pi. Round to the nearest tenth.

 twelve point six millimeters; two hundred one square millimeters

 twenty-five point one millimeters; two hundred one square millimeters

 twelve point six millimeters; fifty point two square millimeters

 twenty-five point one millimeters; fifty point two square millimeters

anonymous · Answer

This is pretty simple.  
Circumference=2*pi*r
Area=pi*r^2

anonymous · Answer

Actually Mokeira, it would be A=3.14*4^2

anonymous · Answer

There's a diameter of 8, but the formula calls for radius squared

midhun.madhu1987 · Answer

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