Quadrilaterals Flashcard

Front

What kind of angle is formed when two lines meet at a right angle?

Back

Right angle

Front

What are parallel lines?

Back

Lines that will never cross.

Front

What kind of angle is less than 90 degrees?

Back

Acute angle

Front

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

Back

Obtuse angle

Front

What is a quadrilateral?

Back

A shape with four sides.

Front

What is a trapezoid?

Back

A quadrilateral with at least one pair of parallel sides.

Front

What is a rectangle?

Back

A quadrilateral with four right angles.

Front

What is a square?

Back

A quadrilateral with four equal sides and four right angles.

Front

What is a rhombus?

Back

A quadrilateral with four equal sides but not necessarily right angles.

Front

What is a parallelogram?

Back

A quadrilateral with two pairs of parallel sides.