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Learn about the properties, types, and angles of triangles in geometry. Explore theorems, formulas, and examples of triangles with interactive exercises and tests.
- Equilateral, Isosceles and Scalene
- Play with It ...
- Area
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There are three special names given to triangles that tell how many sides (or angles) are equal. There can be 3, 2 or noequal sides/angles: How to remember?Alphabetically they go 3, 2, none: 1. Equilateral: "equal"-lateral (lateral means side) so they have all equal sides 2. Isosceles: means "equal legs", and we have two legs, right? Also iSOSceles...
Try dragging the points around and make different triangles: You might also like to play with the Interactive Triangle.
The area is half of the base times height. 1. "b" is the distance along the base 2. "h" is the height (measured at right angles to the base) Area = ½ × b × h The formula works for all triangles. Note: a simpler way of writing the formula is bh/2 The base can be any side, Just be sure the "height" is measured at right angles to the "base": (Note: Yo...
Learn about the different types of triangles, how to identify their angles and sides, and how to calculate their perimeter and area. Explore interactive examples and play with the dragging points to make your own triangles.
A triangle is a polygon with three corners and three sides, one of the basic shapes in geometry. The corners, also called vertices, are zero-dimensional points while the sides connecting them, also called edges, are one-dimensional line segments. The triangle's interior is a two-dimensional region.
Learn what triangles are, how to classify them based on angles and sides, and how to find their area and perimeter. Explore real-life examples, non-examples, and practice problems with interactive games and worksheets.
Learn about triangles, a type of polygon with three sides and angles, in geometry. Find out the different types of triangles based on sides and angles, their properties, perimeter and area formulas, and solved examples.
- 6 min
Learn about the basic properties and classifications of triangles, the 3-sided polygons with 3 sides, angles, and vertices. Explore the special types of right triangles, such as 30-60-90, 45-45-90, and Pythagorean triangles, and how to use their relationships to solve problems.
Learn about the triangle shape, its parts, properties, formulas, and types. Find examples, worksheets, and practice questions on triangles.
