Geometry & Shapes Flashcard

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What is a trapezoid?

Back

A trapezoid is a four-sided figure (quadrilateral) that has exactly one pair of parallel sides.

Front

What is a Venn diagram?

Back

A Venn diagram is a visual tool used to show the relationships between different sets, often using overlapping circles.

Front

What type of triangle has all angles less than 90 degrees?

Back

An acute triangle has exactly three acute angles.

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle measuring exactly 90 degrees.

Front

What is a rhombus?

Back

A rhombus is a four-sided figure (quadrilateral) where all sides are of equal length and opposite angles are equal.

Front

What is a square?

Back

A square is a four-sided figure (quadrilateral) with all sides equal in length and all angles measuring 90 degrees.

Front

What is a rectangle?

Back

A rectangle is a four-sided figure (quadrilateral) with opposite sides equal in length and all angles measuring 90 degrees.

Front

What is the sum of the angles in a triangle?

Back

The sum of the angles in any triangle is always 180 degrees.

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments.