Polygons & Triangles Review

Front

What is a polygon?

Back

A polygon is a closed shape with straight sides. Examples include triangles, quadrilaterals, pentagons, and hexagons.

Tags

CCSS.2.G.A.1

Front

What is a triangle?

Back

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

Tags

CCSS.2.G.A.1

Front

What are the types of triangles based on angles?

Back

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

Tags

CCSS.4.G.A.2

Front

What are the types of triangles based on sides?

Back

1. Equilateral triangle: All sides are equal. 2. Isosceles triangle: Two sides are equal. 3. Scalene triangle: All sides are different.

Tags

CCSS.4.G.A.2

Front

What is an acute triangle?

Back

An acute triangle is a triangle where all three angles are less than 90°.

Tags

CCSS.4.G.A.2

Front

What is a right triangle?

Back

A right triangle is a triangle that has one angle equal to 90°.

Tags

CCSS.4.G.A.2

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle greater than 90°.

Tags

CCSS.4.G.A.2

Front

What is a scalene triangle?

Back

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

Tags

CCSS.4.G.A.2

Front

What is an isosceles triangle?

Back

An isosceles triangle is a triangle that has at least two sides of equal length.

Tags

CCSS.4.G.A.2

Front

What is a nonagon?

Back

A nonagon is a polygon with nine sides.

Tags

CCSS.2.G.A.1