Godsgirlforever Godsgirlforever

09-03-2015
Mathematics

Answered

What is the approximate perimeter of a semicircle with a radius of 6 cm?

Use pi star times = 3.14.
Express your final answer to the nearest hundredth.
I THINK it's 6* pi=18.84

Answer :

13-05-2017

So we want to know what is a perimeter of a semicircle whos radius is 6cm. So to find the perimeter we can use the formula for the circle and divide that in half. Because the semicircle is exactly one half of a circle. So the formula for the perimeter for a circle is O=2r*pi and for the semicircle is one half of that: O=r*pi=6*3.14=18.84cm.

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