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Q: What are facts about the isosceles triangle?

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isosceles triangle

Are isosceles triangle sometimes an equilateral triangle

An obtuse triangle is not necessarily isosceles, but it can be.

No. An isosceles right triangle is a special case. There are many right triangles which are not isosceles.

An isosceles triangle has to have two sides of equal length. An isosceles triangle has to have two sides of equal length.

Related questions

An acute triangle can be an isosceles triangle, but it doesn't have to be. An isosceles triangle can be an acute triangle, but it doesn't have to be.

isosceles triangle

An isosceles triangle is a triangle that has two equal sides.

Are isosceles triangle sometimes an equilateral triangle

A right triangle and an isosceles triangle have the fact that they are both triangles in common. A right triangle can also be an isosceles triangle.

You cannot. An isosceles triangle cannot be scalene and a scalene triangle cannot be isosceles. So an isosceles scalene triangle cannot exist.

how is an isoscelels trapezoid related to a isosceles triangle

An obtuse triangle is not necessarily isosceles, but it can be.

In an isosceles triangle and an isosceles trapezoid, both base angles are congruent

A triangle that has one right angle and is isosceles is called an isosceles right triangle.

No. An isosceles right triangle is a special case. There are many right triangles which are not isosceles.

Yes if the isosceles triangle is a right isosceles triangle because that leg opposite the hypotenuse is the height

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