# isosceles triangle

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Related to isosceles triangle: equilateral triangle

## isosceles triangle

[ī′säs·ə‚lēz ′trī‚aŋ·gəl]
(mathematics)
A triangle with two sides of equal length.
References in periodicals archive ?
increasing one side in turn by a fixed amount; Figure 5 partly) Started with isosceles triangles 6 (e.
The symbol of an isosceles triangle provided the visual graphic for the conceptual framework.
So they can now see that for an isosceles triangle the area is the same as the area of the created rectangle, which is
For example, in the case shown in Figure 4, students needed to deduce that [angle]DEF = [angle]EDF by the isosceles triangle theorem, and that [angle]BED + [angle]DEF = [angle]BDE + [angle]EDF before employing ASA to prove that [DELTA]ABE is congruent to [DELTA]CBD.
The pyramid's form has the symmetry of an isosceles triangle (one of equal measurements on all sides).
Escher Web pages transform the monotony of the isosceles triangle into mind-spinning designs.
Glue each pair of rough triangles together to form an isosceles triangle.
Then equating the area of either trapezium to the area of the isosceles triangle yields
It forms the distinctive large isosceles triangle with two other first magnitude stars, Deneb and Altair and is the chief feature of our summer skies.
TILING TOURS The mathematicians noticed that the tilings always seem to contain a smaller, symmetrical shape, such as a square or isosceles triangle.
In The Wizard of Oz, when Scarecrow gets a brain, he reels off Pythagoras Theory relating to an isosceles triangle.
The simple case for a right isosceles triangle is easily seen to be true by construction.

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