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2 pi r = circumference. 1/2 of that is pi x r. pi is 3.142

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Q: What is the formula for finding the circumference of a semicircle?
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How do find the circumference of a recttangle and semicircle put together?

If the semicircle is placed on 1 side of the rectangle:Find the total perimeter(circumference) of the side opposite to the one with the semicircle's base and the 2 sides perpendicular to the semicircle's base.The formula for circumference of a circle is 2πr.Thus for the semicircle we will take the circumference as πr.Find the sum of 1st and 2nd points. This is the final answer.


What is the formula for finding the perimeter of a semicircle?

Half the Circumference + the DiameterCircumference of a circle = pi X d ,so perimeter of a semi-circle = (3.142 X Diameter) + Diameter


What is the formula for finding the distance around A semicircle?

It is: (pi*radius)+(diameter)


Formula for finding the circumference of cone?

There is no circumference of a cone, but, we only do the circumference of the circle. the formula for the circle is pi times D. D= Diameter


What is the perimeter of a semicircle if the diameter is 8cm?

Ah, what a lovely question! To find the perimeter of a semicircle, you'll need to add the curved part (half the circumference of a full circle) to the diameter of the semicircle. Since the diameter is 8cm, the radius is half of that, which is 4cm. The perimeter would then be half the circumference of a full circle (pi times the diameter) plus the diameter, giving you a total of 4π + 8 cm.


What is the formula for the perimeter of a semicircle?

If you are given the diameter 'D' of the circle: the full circumference is (pi times D) the perimeter of the semicircle is half this plus the diameter Therefore: Pi x D /2 + D


What is the formula for finding circumferencE when only diameter is given?

Circumference of a circle = (pi) x (diameter)


What is the formula of finding the circumference of the pipe?

diameter times 3.14159


What is the approximate circumference of a semicircle with a radius of 30 centimeters?

You can multiply the radius by pi to get the length of the semicircle.


What is the formula for finding the radius of a circle when you have the circumference?

Divide the circumference by 2*pi because 2*pi*radius = circumference


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

2r+pi r


What is the formula for finding the circumference of a circle with diameter?

PI times the DIAMETER