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multiply pi times diameter and divide by 2!

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Q: How do you do work out the circumference of a semi -circle?
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Related questions

A semi circle has a radius of 5 inches. What is the circumference?

Well the circumference equation is 2pi r and a semi-circle is half of a full circle so the circumference is 15.71 inches.


What is the half of circumference?

It is a semi circle


Does a semi circle have one side?

Being half of the circumference of a circle, a semi circle has one side


How do you find the perimeter of a semi circle with a diameter of 12mm?

-- Find the circumference of a full circle with a diameter of 12 mm.-- The perimeter of the semi-circle is(1/2 the circumference of the full circle) + (the diameter).


What is a circle equal to one half of a circumference?

It is a semicircle.


Work out the perimeter of the semi-cirle when diameter is 15cm?

The perimeter of a full circle (circumference) is "pi" times the diameter. So the perimeter of a semi-circle will be half that; Perimeter = (pi/2) x (diameter).


What is the circumference of 52 m semicircle?

circumference or perimeter of the semi-circle = (diameter*pi)/2 + diameter


What is the formula for finding circumference of a semi-circle?

2r+pi r


What is the circumference of a semi circle with a six inch radius?

find the circumferance as if it was a whole circle but when you get the answer divide it by 2


How do you find the perimeter for a semi circle?

Its perimeter is half of its circumference plus its diameter


How do you work out the perimeter of a semi circle?

Measure the diameter of the circle,this is a line taken right across the circle that goes through the centre. Now multiply by pi =3.142 and divide by 2 to get the length of half the circumference.


How do you find the perimeter of a rectangle with a semi circle attached to it?

add the perimeter of the rectangle, minus the side that'c covered by the semi circle. then, find the circumference of the semi circle [diameter x pi, divided by 2] and addd them together