A triangle that has no sides of equal length.
A triangle with three equal angles.
An isosceles triangle is a triangle that has at least two sides of equal length.
A triangle with all sides of different lengths.
The legs.
The hypotenuse.
The bases.
The angles.
The base angle.
The vertex angle.
The right angle.
The supplementary angle.
They are equal.
They are unequal.
They are obtuse.
They are complementary.
By subtracting the base from twice the sum of the legs.
Sum up the lengths of the three sides.
By adding the legs and dividing by the base.
By only measuring the base.
It is solely an angle bisector.
It intersects the legs.
It is always external.
The altitude is also the median and the angle bisector.
The Base Angles Theorem.
The Pythagorean Theorem.
Pascal's Theorem.
The Triangle Sum Theorem.
By multiplying base by height.
Using the sine rule.
Adding the base to the two legs.
Using the formula: area = 1/2 * base * height.
It's an isosceles right triangle.
It's an equilateral triangle.
It's a scalene triangle.
It's an obtuse triangle.
Because all the angles are 60 degrees.
Because the angles are all different.
It has two sides of equal length, 5 cm each, confirming it as isosceles.
Because the base is half of the equal sides.
The base and legs are of equal length.
The legs are equal in length, while the base can be of different length.
The base is always longer than the legs.
The legs are complementary to the base.
The Law of Perspective.
The Pythagorean Theorem.
Use the Law of Cosines to find the third side.
The Law of Sines.
No, they are mutually exclusive.
Yes, if all three sides are equal, it is an equilateral triangle as well.
Only if the angles are right angles.
Only if the base angles are obtuse.
It is always more than 180 degrees.
The sum of the internal angles is always 180 degrees, just like any other triangle.
It is less than in an obtuse triangle.
It can be any value above 100 degrees.
The altitude can fall outside the triangle when extended.
The altitude remains inside the triangle.
It becomes impossible to define an altitude.
The altitude is collinear with the base.