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An equilateral triangle has all sides equal in length and all interior angles equal. Therefore there is no "largest" or "smallest" in this case. Isosceles triangles Isosceles triangles have two sides the same length and two equal interior angles. Therefore there can be two sides and angles that can be the "largest" or the "smallest".
- Incenter of a Triangle
The incenter is the center of the triangle's incircle, the...
- Centroid of a Triangle
Once you have found the point at which it will balance, that...
- Triangle Altitudes
For example, you may see "draw an altitude of the triangle...
- Circumcenter of a Triangle
One of several centers the triangle can have, the...
- Triangle Incircle
The location of the center of the incircle. The point where...
- Area of a Triangle
A method of calculating the area of a triangle when you know...
- Triangle Midsegment
Definition and properties of the midsegment of a triangle....
- Triangle Circumcircle
For equilateral triangles In the case of an equilateral...
- Incenter of a Triangle
Rule 1: Interior Angles sum up to 1800 180 0. Rule 2: Sides of Triangle -- Triangle Inequality Theorem : This theorem states that the sum of the lengths of any 2 sides of a triangle must be greater than the third side. Rule 3: Relationship between measurement of the sides and angles in a triangle: The largest interior angle and side are ...
- Equilateral, Isosceles and Scalene
- Play with It ...
- Area
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...
SAS Postulate: Two sides in a triangle have the same length as two sides in the other triangle, and the included angles have the same measure. ASA: Two interior angles and the side between them in a triangle have the same measure and length, respectively, as those in the other triangle. (This is the basis of surveying by triangulation.)
Equilateral triangles do have equal angles. Since all three sides are the same length, it follows that all three angles have the same measure. We can calculate the angle as follows: call the angle A. The three angles in an equilateral triangle all have a measure of A, and the three angles add up to 180 degrees.
Jul 30, 2024 · An angle bisector of a triangle angle divides the opposite side into two segments that are proportional to the other two triangle sides. Or, in other words: The ratio of the B D ‾ \overline{BD} B D length to the D C ‾ \overline{DC} D C length is equal to the ratio of the length of side A B ‾ \overline{AB} A B to the length of side A C ...
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Three lengths are needed to form a triangle. The total sum of the two shorter lengths must be greater than the longest length. Lengths of 2 cm, 5 cm and 9 cm do not make a triangle. The 2 cm and 5 ...
