Printable Rhombus Angles and Diagonals Activity for High School

📐 Topic Summary

A rhombus is a quadrilateral with all four sides equal in length. It has some special properties regarding its angles and diagonals. Opposite angles of a rhombus are equal, and the diagonals bisect each other at right angles (90 degrees). The diagonals also bisect the angles of the rhombus. This activity will help you practice these concepts.

🔑 Part A: Vocabulary

Match each term with its correct definition:

1. Rhombus
2. Diagonal
3. Bisect
4. Right Angle
5. Quadrilateral

1. A straight line connecting two non-adjacent vertices of a polygon.
2. A four-sided polygon.
3. An angle of 90 degrees.
4. To cut into two equal parts.
5. A parallelogram with all four sides equal in length.

✍️ Part B: Fill in the Blanks

Complete the following paragraph using the words provided below.

The diagonals of a rhombus are ______________ to each other, meaning they intersect at a ______________ angle. Also, the diagonals ______________ the angles of the rhombus into two equal parts. Finally, opposite angles in a rhombus are ______________.

Word Bank: equal, bisect, perpendicular, right

🤔 Part C: Critical Thinking

Imagine you have a rhombus where one of the angles is 60 degrees. What are the measures of the other three angles? Explain your reasoning.