Triangles & Quadrilaterals

Front

What is a triangle?

Back

A triangle is a three-sided polygon.

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 quadrilateral?

Back

A quadrilateral is a four-sided polygon.

Front

What are the types of quadrilaterals?

Back

1. Rectangle 2. Square 3. Trapezoid 4. Rhombus 5. Parallelogram

Front

What is a rectangle?

Back

A rectangle is a quadrilateral with opposite sides equal and all angles equal to 90 degrees.

Front

What is a square?

Back

A square is a quadrilateral with all sides equal and all angles equal to 90 degrees.

Front

What is a trapezoid?

Back

A trapezoid is a quadrilateral with at least one pair of parallel sides.

Front

What is a rhombus?

Back

A rhombus is a quadrilateral with all sides equal and opposite angles equal.

Front

What is a parallelogram?

Back

A parallelogram is a quadrilateral with opposite sides equal and parallel.

Front

What is the sum of the interior angles of a triangle?

Back

The sum of the interior angles of a triangle is always 180 degrees.