4th Grade Geometry Triangles, Angles and Quadrilaterals

Front

What is the line that shows a shape has symmetry called?

Back

Line of Symmetry

Front

What is an isosceles triangle?

Back

A triangle with 2 congruent or equal sides.

Front

What is a right triangle?

Back

A triangle that has one angle measuring 90 degrees.

Front

What is a triangle?

Back

A figure formed by three segments joining three points on a plane.

Front

What is a line segment?

Back

A part of a line that has two endpoints.

Front

What is a quadrilateral?

Back

A polygon with four sides.

Front

What is an acute angle?

Back

An angle that measures less than 90 degrees.

Front

What is an obtuse angle?

Back

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

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is a scalene triangle?

Back

A triangle with no congruent or equal sides.