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triangles & anglesMastery: 0%

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a triangle with 2 equal sides
back
isosceles triangle
front
a triangle with no equal sides
back
scalene triangle
front
a triangle with 3 equal sides
back
equilateral triangle
front
any triangle containing a right angle
back
right triangle
front
a triangle where all three internal angles are acute
back
acute triangle
front
a triangle where one of the internal angles is obtuse
back
obtuse triangle
front
a 90○ angle
back
right angle
front
an angle measuring less than 90○
back
acute angle
front
an angle measuring more than 90○
back
obtuse angle
front