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A SCALENE triangle has no equal angles and no equal sides.
EQUILATERAL Triangle ; All sides are equal and all angles are 60 degrees.
ISOSCELES Triangle ; Two sides are equal and two angles are equal
RIGHT-ANGLED Triangles ; Two sides may be equal or all three sides of different length. There MUST be ONE angle of 90 degrees.
NB THis applies to triangles drawn in 2-dimension only. A plane figure ; A TRIGON .
NNB For all triangles the sum of the INTERIOR ANGLES is ALWAYS 180 degrees.
NNNB A very Special Case is a triangle drawen across a sphere; 3 dimensional; the sum of the angles may be greater than 180 degrees. e.g. lines of latitude and longitude(meridians) across the Earth.
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How can you arrange the numbers 5 6 7 8 9 and 10 in a trainagle that equals 21?
Not sure about a trainagle, but if you mean a triangle, the answer is * * * * *5 * * 10 * * * *9 * 6 * * * 8 * * * 7
What trainagle has one line of symmetry?
An isosceles triangle has only one line of symmetry
What kind of triangle has sides of different length?
A scalene triangle.A scalene triangle.A scalene triangle.A scalene triangle.
What about the scalene triangle that makes it a scalene triangle?
A scalene triangle makes it scalene because all sides have different length.
Can a scalene triangle be a scalene triangle?
Yes
