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Semicircle Calculator. Calculations at a semicircle. Radius and diameter refer to the original circle, which was bisected through its center.Enter one value and choose the number of decimal places.


Just enter the value of radius in the area of a semicircle calculator to compute the semicircle area within a blink of an eye. Area of a Semi-Circle: A semi-circle is half of a circle. Area of semi-circle formula is derived from the formula of a circle.


Perimeter of a Semicircle Calculator To find the perimeter of a semicircle we need to add the curved section of the semicircle and the length of the diameter at the bottom of the semicircle. We can find the perimeter of a semicircle with the help of this below formula: where,


Additional Information A semi-circle (or semicircle) is simply one-half of circle. It can also be thought of as a sector with an angle of 180 degrees. If the perimeter of the semi-circle is needed, add together the lengths of one-half of the circumference + diameter: Where (for brevity) it says 'radius', 'circumference' and so on, it should, more correctly, be something like 'l...


Circle Shape. r = radius d = diameter C = circumference A = area π = pi = 3.1415926535898 √ = square root. Calculator Use. Use this circle calculator to find the area, circumference, radius or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.


Calculator online for a capsule. Calculate the unknown defining surface areas, height, base circumference, volumes and radii of a hemisphere with any one known variable. Online calculators and formulas for a hemisphere and other geometry problems.


Improve your math knowledge with free questions in "Semicircles: calculate area, perimeter, radius, and diameter" and thousands of other math skills.


To find the area of a semicircle, start by finding the area of the full circle using the formula πr^2, where r is the radius of the circle. If you don't know the radius, you can find it by dividing the diameter of the circle by 2. Once you've found the area of the full circle, just divide it by 2 to find the area of the semicircle.


To find the perimeter of a semi circle, you have to know the diameter (the length of its straight edge). For example, if the diameter of your semi circle is 12 centimeters, the formula becomes P = 1/2 (3.14 × 12) + 12.


A semicircle is one half of a circle. It looks like a straight line with a circular arc connecting its ends to one another. The straight edge of the semicircle is the diameter and the arc is half the circumference of a full circle with the same diameter. You can find the radius of a semicircle using the formulas for circumference and diameter.