Polygons and Triangles

Front

What is a polygon?

Back

A polygon is a closed figure made up of straight line segments. The segments are called sides, and the points where the sides meet are called vertices.

Front

What is a triangle?

Back

A triangle is a polygon with three sides and three angles.

Front

What are the types of triangles based on angles?

Back

1. Acute triangle: All angles are less than 90 degrees. 2. Right triangle: One angle is exactly 90 degrees. 3. Obtuse triangle: One angle is greater than 90 degrees.

Front

What is a scalene triangle?

Back

A scalene triangle is a triangle where all three sides are of different lengths and all three angles are different.

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length and the angles opposite those sides are equal.

Front

What is an equilateral triangle?

Back

An equilateral triangle is a triangle where all three sides are of equal length and all three angles are equal, each measuring 60 degrees.

Front

What is a quadrilateral?

Back

A quadrilateral is a polygon with four sides, four vertices, and four angles.

Front

What are the types of quadrilaterals?

Back

1. Square: All sides are equal and all angles are 90 degrees. 2. Rectangle: Opposite sides are equal and all angles are 90 degrees. 3. Rhombus: All sides are equal but angles are not 90 degrees. 4. Trapezoid: At least one pair of parallel sides.

Front

What is a regular polygon?

Back

A regular polygon is a polygon where all sides and angles are equal.

Front

What is an irregular polygon?

Back

An irregular polygon is a polygon that does not have all sides and angles equal.