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An isosceles trapezium has: One pair of unequal parallel sides. Two non-parallel equal sides. Two pairs of adjacent equal angles. Diagonals that are equal in length. One line of symmetry.
- What are the different types of triangle? - BBC Bitesize
Discover the different types of triangles and find out the...
- What are the different types of triangle? - BBC Bitesize
Discover the different types of triangles and find out the difference between an equilateral, scalene, isosceles and right-angled triangle in this KS2 guide.
Isosceles triangle. two sides are of equal length; two angles are equal (called the base angles)
How to classify a quadrilateral. Types and properties of quadrilaterals worksheet. Get your free types and properties of quadrilaterals worksheet of 20+ questions and answers. Includes reasoning and applied questions. DOWNLOAD FREE. Related lessons on polygons.
Key learning points. All triangles have 3 straight sides and 3 vertices. Equilateral triangles have 3 equal sides and 3 equal angles. Isosceles triangles have 2 equal sides and 2 equal angles. Scalene triangles have no equal sides and no equal angles. Common misconception.
An isosceles trapezoid’s interior angles add up to 360 degrees. The non-parallel sides of an isosceles trapezoid are congruent. The median runs parallel to both bases, and its length is equal to the sum of the bases’ lengths. “Trapezium” is another name for a trapezoid.
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Are the parallel sides of an isosceles trapezoid equal?
Which isosceles trapezoid has equal length?
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What are the different types of triangles?
In Euclidean geometry, an isosceles trapezoid (isosceles trapezium in British English) is a convex quadrilateral with a line of symmetry bisecting one pair of opposite sides. It is a special case of a trapezoid.
