No. An isosceles has two equal sides and two equal angles. A scalene has no equal sides and no equal angles.
An isosceles triangle.
Isosceles triangle
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.
Yes. Always
No. An isosceles has two equal sides and two equal angles. A scalene has no equal sides and no equal angles.
No. A scalene triangle is never isosceles. An isosceles triangle has two equal sides. A scalene triangle has none.
An isosceles triangle.
Isosceles triangle
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.
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.
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.
No because an isosceles triangle has various two congruent angles. A 45-45-90 triangle is technically an isosceles triangle.
Yes. Always
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.
If you can only prove two sides of an apparently equilateral triangle to be congruent then you have to use isosceles.
An isosceles triangle has 2 equal sides.