Q: Could a obtuse triangle ever be an equilateral triangle?

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Yes and it will have 3 equal sides

No but it is possible for it to be an isosceles triangle with angles of 45, 45 and 90 degrees

no...beacuse a parallelogram has to have parallel sides....a triangle can never have parallel sides

No not ever because the 3 interior angles of any triangle add up to 180 degrees and so an obtuse triangle will have 1 obtuse and 2 acute angles.

no. A triangle has total 180 degrees. An equilateral triangle requires all three angle measures to be the same, so every angle HAS to be equal to 60 degrees. A right triangle has 1 90 degree angle and 2 45 degree angles, so it can never be an equilateral triangle.

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nope

Yes and it will have 3 equal sides

no

No but it is possible for it to be an isosceles triangle with angles of 45, 45 and 90 degrees

no...beacuse a parallelogram has to have parallel sides....a triangle can never have parallel sides

No. An equilateral triangle must also be equi-angular, meaning that the angles can only ever have 60 degrees.

No not ever because the 3 interior angles of any triangle add up to 180 degrees and so an obtuse triangle will have 1 obtuse and 2 acute angles.

no. A triangle has total 180 degrees. An equilateral triangle requires all three angle measures to be the same, so every angle HAS to be equal to 60 degrees. A right triangle has 1 90 degree angle and 2 45 degree angles, so it can never be an equilateral triangle.

yes

No not ever because they both have different properties

No not ever because they both have different properties

An isosceles triangle is one that has two sides of the same length and one side different An equilateral triangle is one that has all of its sides of equal length. All of the angles on an equilateral triangle are 60 degrees. A triangle with two sides 4cm and one side 100m would be an isosceles. But an equilateral triangle has all of the sides exactly the same so therefore an isosceles triangle can never ever be an equilateral triangle