A triangle with a 30, 60, and 90 degree angle.
A triangle with a two 45 degree angles and one 90 degree angle.
A triangle with three acute angles.
An angle of an isosceles triangle opposite one of the equal sides, i.e. opposite one of the legs.
The side of an isosceles triangle unequal to the other two sides, the legs.
A triangle whose angles are all equal.
A triangle whose sides are all equal (of equal length).
The side of a right triangle opposite the right angle. The Pythagorean Theorem states that the square of the hypotenuse is equal to the sum of the square of the other two sides.
A triangle with at least two equal sides.
The two sides of a right triangle opposite the two oblique angles.
The two sides of an isosceles triangle that are equal.
A triangle with one obtuse angle.
The theorem that states that the length of the hypotenuse squared is equal to the sum of the squares of the lengths of the legs of a right triangle; c^{2} = a^{2} + b^{2}.
A set of three integers a, b, and c such that c^{2} = a^{2} + b^{2}
A triangle with one right angle.
A triangle with no equal sides.
The angle in an isosceles triangle opposite the base.
Length of Hypotenuse | c = a^{2} + b^{2}), where a and b are the lengths of the legs. |
Length of a Leg | a = c^{2} - b^{2}), where c is the length of the hypotenuse and b is the length of the other leg. |