An angle whose measure is greater than 0 but less than 90 degrees.
A triangle whose angles are acute.
Ratio determined by the hypotenuse in a right triangle and a side adjacent to a reference angle.
A triangle whose sides are equal in length.
A triangle with two sides of equal length.
A statement that two ratios are equal
One of four numbers that form a true proportion
Ratio of the length of the opposite side to a reference angle in a right triangle and the hypotenuse. Opposite/hypotenuse.
An angle whose measure is greater than 90 but less than 180 degrees
A triangle with one acute angle.
A quotient of 2 numbers
A triangle that has a 90 degree angle.
A triangle with no equilateral sides.
A polygon with three sides.
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