Geometry 4th Grade Flashcard

Front

What type of triangle has one angle greater than 90 degrees?

Back

Obtuse triangle

Front

What is the measure of a right angle?

Back

90 degrees

Front

What do we call lines that never intersect?

Back

Parallel lines

Front

What is a shape with four sides called?

Back

Quadrilateral

Front

What do we call a triangle with all angles less than 90 degrees?

Back

Acute triangle

Front

What is the term for lines that meet at a right angle?

Back

Perpendicular lines

Front

What is the measure of angle RST if it is 40 degrees?

Back

40 degrees

Front

What do we call a shape that has exactly two lines of symmetry?

Back

A shape with two lines of symmetry can be a rectangle or an isosceles triangle.

Front

What is a polygon with all sides and angles equal called?

Back

Regular polygon

Front

What do we call a triangle with one angle equal to 90 degrees?

Back

Right triangle