no
Not always but sometimes
yes! But only an isosceles Trapezoid.
If you want to, you can always draw a circle around an isosceles trapezoid and the radius can be half the base of the trapezoid.
yes
An isosceles triangle has at least two congruent sides. An equilateral triangle has three congruent sides. So, an equilateral triangle is a special case of isosceles triangles. Since the equilateral triangle has three congruent sides, it satisfies the conditions of isosceles triangle. So, equilateral triangles are always isosceles triangles. Source: www.icoachmath.com
No, not every trapezoid is an isosceles trapezoid.
Not always but sometimes
yes! But only an isosceles Trapezoid.
If you want to, you can always draw a circle around an isosceles trapezoid and the radius can be half the base of the trapezoid.
Three (if it happens to also be an equilateral triangle).If it's isosceles but not equilateral, it has only one line of symmetry.
yes, it would always be
Only when it is an isosceles trapezoid.
yes
Yes, always.
Yes.
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 at least two congruent sides. An equilateral triangle has three congruent sides. So, an equilateral triangle is a special case of isosceles triangles. Since the equilateral triangle has three congruent sides, it satisfies the conditions of isosceles triangle. So, equilateral triangles are always isosceles triangles. Source: www.icoachmath.com