Search Use my location Satellite Street Undo point Close shape Clear Enter GPS coordinates instead Search for a location or use your GPS, then click points on the map around the area you want to measure. Enter GPS coordinates (one…
Area Between Curves Calculator Compute the area under a single curve, the area between two curves, or the area enclosed by a polar curve — using numerical integration (Simpson’s Rule), so it works with any function you can type, not…
Cross-Sectional Area Calculator Find the cross-sectional area of a solid round bar, a solid rectangular bar, a round tube or pipe, or a rectangular (hollow) tube. Choose a shape below, enter the dimensions you know, and the calculator shows the…
Area of Irregular Shapes Worksheet (Free, With Answer Key) Nine practice problems across three methods. Work through them, then check your answers below — and print or save as PDF when you’re done. Show Answers Print / Save as PDF…
A semicircle is exactly half of a circle formed by dividing a full circle along its diameter. Because of this relationship, every property of a semicircle remains directly connected to the original circle, including its radius, diameter, arc length, perimeter,…
Overlapping circles occur when two circles intersect partially or completely, creating a shared region between them. This shared region is called the intersection area or overlap area. The size of the overlap depends on: the radius of each circle, and…
A circle with a hole is a ring-shaped geometric figure formed when a smaller circle is removed from the center of a larger circle. In geometry, this shape is known as an annulus, although most people use simpler terms such…
A circle is one of the most important geometric shapes because it appears naturally in engineering, construction, transportation, architecture, manufacturing, and everyday objects. Unlike polygons that contain straight edges and corners, a circle forms a perfectly curved boundary where every…
An equilateral triangle is one of the most balanced and mathematically perfect shapes in geometry. Every side has the same length, every interior angle measures exactly \(60^\circ\), and each part of the triangle follows a fixed geometric relationship. Because of…
Calculating the area of a triangle becomes more interesting when the height is unknown. In many geometry problems, construction layouts, land measurements, and engineering designs, people often know only a few sides and angles instead of a clear perpendicular height.…
