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Are an isosceles and a scalene triangle always similar?
No. An isosceles has two equal sides and two equal angles. A scalene has no equal sides and no equal angles.
A triangle with two congruent sides is always?
An isosceles triangle.
Which triangle always has at least two congruent sides?
Isosceles triangle
If it is an equilateral triangle it is isosceles?
An equilateral triangle is a triangle with three equal sides. An isosceles triangle is one with two equal sides. So yes, an equilateral triangle qualifies as being an isosceles triangle as well. This is quite similar to the relationship between squares and rectangles, where a square is always a rectangle, but a rectangle isn't necessarily a square.
Does an isosceles triangle have two equal lines?
Yes. Always
Are an isosceles and a scalene triangle always similar?
No. An isosceles has two equal sides and two equal angles. A scalene has no equal sides and no equal angles.
Is a scalene always isosceles?
No. A scalene triangle is never isosceles. An isosceles triangle has two equal sides. A scalene triangle has none.
A triangle with two congruent sides is always?
An isosceles triangle.
Which triangle always has at least two congruent sides?
Isosceles triangle
Does an isosceles triangle have a right angle?
An isosceles triangle has two equal sides and two equal angles. A right triangle is any triangle with one angle that is a right angle. A right triangle could also be an isosceles triangle, but an isosceles triangle will not always have a right angle.
Does an isosceles triangle have right angles?
An isosceles triangle has two equal sides and two equal angles. A right triangle is any triangle with one angle that is a right angle. A right triangle could also be an isosceles triangle, but an isosceles triangle will not always have a right angle.
If it is an equilateral triangle it is isosceles?
An equilateral triangle is a triangle with three equal sides. An isosceles triangle is one with two equal sides. So yes, an equilateral triangle qualifies as being an isosceles triangle as well. This is quite similar to the relationship between squares and rectangles, where a square is always a rectangle, but a rectangle isn't necessarily a square.
Is a triangle with two congruent angles always a 45-45-90 triangle?
No because an isosceles triangle has various two congruent angles. A 45-45-90 triangle is technically an isosceles triangle.
Does an isosceles triangle have two equal lines?
Yes. Always
Why are isosceles triangle always equal?
Isosceles triangles are not always equal. Some are large some are small, some have two long sides that are equal, and some have two short sides that are equal. Every isosceles triangle has two sides that are of equal length; that is what makes it isosceles.
Is an equilateral triangle always or sometimes called an isosceles?
If you can only prove two sides of an apparently equilateral triangle to be congruent then you have to use isosceles.
Are two isosceles right triangles always similar?
No
