Question

explain types of triangles acc to sides​

Answer 1

Equilateral Triangle :- All 3 sides are equal
Scalene Triangle :- All 3 sides are unequal
Isosceles Triangle :- Any 2 sides are equal

Answer 2

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Scalene (adjective): from the Indo-European root skel- "to cut." Greek skalenos originally meant "stirred up, hoed up." When a piece of ground is stirred up, the surface becomes "uneven," which was a later meaning of skalenos. A scalene triangle is uneven in the sense that all three sides are of different lengths. The scalene muscles on each side of a person's neck are named for their triangular appearance. A scalene cone or cylinder is one whose axis is not perpendicular to its base; opposite elements make "uneven" angles with the base.

Isosceles (adjective): from Greek isos "equal", of unknown prior origin, and skelos "leg". The Indo-European root (s)kel- "curved, bent" is found in scoliosis and colon, borrowed from Greek. In geometry, an isosceles triangle or trapezoid has two equal legs. It may seem strange that the root means "bent" even though the sides of a triangle or trapezoid are straight, but each leg is bent relative to the adjoining legs.

Equilateral (adjective): from Latin æquus "even, level," and latus, stem later-, "side," both of uncertain origin. Related borrowings from Latin are bilateral and multilateral. In geometry, equilateral triangle is one in which all sides are equal in length.

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