Yes.
Yes.
An [equilateral] triangle, square and hexagon are the only regular polygons which, by themselves, will tile a surface.
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
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.
An isosceles triangle is a triangle that has two equal sides.
Are isosceles triangle sometimes an equilateral triangle
how is an isoscelels trapezoid related to a isosceles triangle
In an isosceles triangle and an isosceles trapezoid, both base angles are congruent
Not necessarily. !!!! There are obtuse Scalene triangles . e.g. angles of 120 + 10 _+50 = 180 degrees. Obtuse Isosceles triangle is 120 + 30 + 30 = 180 NB 120 degrees of angle make the triangle obtuse.
No. An isosceles right triangle is a special case. There are many right triangles which are not isosceles.