2 pi r = circumference. 1/2 of that is pi x r. pi is 3.142
Half the Circumference + the DiameterCircumference of a circle = pi X d ,so perimeter of a semi-circle = (3.142 X Diameter) + Diameter
It is: (pi*radius)+(diameter)
Circumference of a circle = (pi) x (diameter)
4*pi*r2. because surface area is equal to circumference of circle.
401.92 m
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.
It is: (pi*radius)+(diameter)
Half the Circumference + the DiameterCircumference of a circle = pi X d ,so perimeter of a semi-circle = (3.142 X Diameter) + Diameter
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
The circumference of a semicircle is pi times the radius plus the diameter.
diameter times 3.14159
circumference = pi multiplied by the diameter
Circumference of a circle = (pi) x (diameter)
Divide the circumference by 2*pi because 2*pi*radius = circumference
You can multiply the radius by pi to get the length of the semicircle.
3.14 to the 2 power
2r+pi r