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Find the perimeter of a triangle
The perimeter is the length of all sides of the polygon. The perimeter is denoted by a capital Latin letter P. There are several ways…
Circle segment area
A segment of a circle is the part of a circle that is bounded by an arc of a circle and its chord. Our online…
Transfer files from phone to computer
The question of how to transfer photos from a phone to a computer arises among gadget users quite often. The easiest and fastest way to…
Measure file size
Often there is a need to find out what size a file or several files are. You may need this for various reasons, for example,…
Crop photos in a circle online
The main purpose of this service is to cut a circle from your photo online. After cropping the image, you can download it for free.…
Circle sector area
A sector of a circle is the part of a circle bounded by an arc and two radii connecting the ends of the arc to…
Find the area of a sector of a ring
A ring sector is the part of a circle bounded by an outer and inner arc and two radii connecting the ends of the arcs…
Quadrangle area
A quadrilateral is a polygon with four vertices and four sides. No three vertices of a quadrangle lie on one straight line Distinguish between convex…
Calculation of the area of the ring
A ring is a flat geometric figure bounded by two concentric circles. The area of the ring is defined as the difference between the areas…
Ellipse area calculator
An ellipse is a closed curve on a plane, which can be obtained as the intersection of a plane and a circular cylinder, or as…