The perimeter of a semicircle is 1/2 of the circumference of the corresponding complete circle plus the diameter of the circle. The distance around the outside of a semicircle is generally called its perimeter.
Know MoreA semicircle can be seen as the shape that is formed when a circle is cut in half along its diameter. The arc that remains as a part of the semicircle is half as long as the circumference of the whole circle. The perimeter of the semicircle also includes the straight line that connects the two ends of that arc. That line is the same length as the diameter of the original circle.
The perimeter of the semicircle is the length of its arc plus the length of the line that closes the shape and can be calculated using these equations:
P (semicircle) = 1/2 C (circle) + d (circle)
C (circle) = ?d (circle)
d (circle) = 2r (circle or semicircle)
Where:
To find the arc of a circle, divide the angle subtended at the center of the arc by 360 degrees, then multiply the answer by the circumference of the circle. You need to know the value of pi and must have a protractor to complete this task.
Full Answer >To calculate the circumference of a circle, multiply the diameter of the circle in question by pi. You need to know the diameter of the circle to complete this task.
Full Answer >The formula for circumference of a circle is 2πr, where “r” is the radius of the circle and the value of π is approximately 22/7 or 3.14. The circumference of a circle is also called the perimeter of the circle.
Full Answer >The circumference of a circle is the distance around the outskirts of the circle. Knowing the radius of any circle allows one to calculate its circumference.
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