Math Basic Geometry: Shapes

Front

What is a two-dimensional shape made of four sides of equal length and in which the pairs of opposite sides are parallel?

Back

Rhombus

Front

What is a 90-degree angle formed by two perpendicular lines or line segments?

Back

Right angle

Front

What is an angle less than 90 degrees called?

Back

Acute angle

Front

What is a geometric figure that has three straight sides and three angles?

Back

Triangle

Front

What is an angle between 90 and 180 degrees called?

Back

Obtuse angle

Front

What do you call a shape with four sides where opposite sides are equal and all angles are right angles?

Back

Rectangle

Front

What is the term for a shape with no corners or edges?

Back

Circle

Front

What do you call a polygon with five sides?

Back

Pentagon

Front

What is the name of a triangle with one angle greater than 90 degrees?

Back

Obtuse triangle

Front

What is the term for a triangle with all sides of different lengths?

Back

Scalene triangle