12-6 Math Flashcard

Front

In a ____________ triangle one angle is exactly 90 degrees.

Back

right

Front

What type of angle is more than 90 degrees but less than 180 degrees?

Back

obtuse

Front

True or False: A square is a rectangle.

Back

True

Front

What do you call lines that never meet and are always the same distance apart?

Back

parallel lines

Front

What type of triangle has two sides of equal length?

Back

isosceles triangle

Front

What is the sum of the angles in a triangle?

Back

180 degrees

Front

What type of angle is less than 90 degrees?

Back

acute

Front

What do you call a triangle with all sides of different lengths?

Back

scalene triangle

Front

What is the name of a polygon with four sides?

Back

quadrilateral

Front

What type of angle is exactly 90 degrees?

Back

right angle