Q: Is it true that a semi regular tessellation includes scalene triangles?

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Scalene triangles those triangles in which all the sides are of different lengths, but in isosceles triangles two sides of the triangle are equal in length. Therefore, no scalene triangle can ever be isosceles.

No, scalene triangles can be obtuse, right or acute triangles. A 3 - 4 -5 right triangle (lengths of the sides) is one example of a right-scalene triangle. In fact, with the exception of the [45°, 45°, 90°] right triangle (which is isosceles) all other right triangles are scalene.

scalene triangles can be the same as acute triangles beacause scalene triangles are triangles with 3 different angles and sides. An acote triangle needs to have 3 angles less than 90 degrees.

Obtuse triangles can also be scalene if none of the sides are of equal length. Otherwise, it is an isosceles triangle.

a scalene triangle has 0 lines of symmetry. Scalene triangles are triangles with no sides the same so it can't have a side of symmetry. That is why their are 3 different types of triangles

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false

Yes, it can, even a regular octagon.

triangles are scalene because they have no equal sides

Scalene triangles are polygons like all triangles. The lengths of the sides of scalene triangle are all different.

Scalene triangles those triangles in which all the sides are of different lengths, but in isosceles triangles two sides of the triangle are equal in length. Therefore, no scalene triangle can ever be isosceles.

No

Right triangles have one right angle. Scalene triangleIs have sides of unequal length. Right scalene triangles combine those aspects.

No, a scalene is a scalene and an equilateral is an equilateral. They are NOT the same.

scalene triangles

They are both types of triangles

No, scalene triangles can be obtuse, right or acute triangles. A 3 - 4 -5 right triangle (lengths of the sides) is one example of a right-scalene triangle. In fact, with the exception of the [45°, 45°, 90°] right triangle (which is isosceles) all other right triangles are scalene.

Look at that scalene triangle! There are many types of Scalene Triangles.