i lowkey cant fail this or else im fcked

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Scalene Triangle

A triangle with 3 different side lengths.

Isosceles Triangle

A triangle with 2 equal sides.

Equilateral Triangle

A triangle with 3 equal sides and 3 angles of 60°.

Acute Triangle

A triangle with 3 angles less than 90°.

Right Triangle

A triangle with exactly 1 right angle (90°).

Obtuse Triangle

A triangle with 1 angle greater than 90°.

Exterior Angles Theorem

The exterior angle equals the sum of the two opposite inside angles.

Triangle Angle Sum Theorem

The three interior angles of a triangle always add up to 180

Linear Pair Theorem

Two adjacent angles forming a straight line add up to 180

Vertical Angles Theorem

Opposite angles formed by two intersecting lines are equal.

Isosceles Triangle Theorem

If a triangle is an isosceles triangle than its base angles are congruent.

Converse of the Isosceles Triangle Theorem

If two base angles are congruent then the triangle is an isosceles triangle

Equilateral Triangle Property

If a triangle is equilateral than all of its angles are all equal to 60

Triangle Inequality Theorem

The sum of any two side lengths must be greater than the third side.