A right angle is a 90-degree angle, formed by two perpendicular lines or line segments. When two lines or line segments intersect to form a right angle, they create four 90-degree angles at the point of intersection.

**Measure:**A right angle measures exactly 90 degrees.**Perpendicular Lines:**Two lines that intersect at a right angle are called perpendicular lines.**Symbol:**In geometry, a right angle is often denoted by a small square in the corner of the angle.

Examples of right angles can be found in various objects and shapes, such as:

- A square has four right angles.
- A rectangle has four right angles.
- The corner of a book or a piece of paper forms a right angle.
- A crossroad with perpendicular streets forms right angles at the intersection.

Right angles play a crucial role in geometry and are used to define and measure various shapes and properties. They are also fundamental in understanding concepts such as perpendicular lines, orthogonal shapes, and the Pythagorean theorem.

To understand right angles better, it's important to practice identifying and measuring them. Here are some key points to remember when studying right angles:

- Understand that a right angle measures exactly 90 degrees.
- Practice identifying right angles in everyday objects and geometric shapes.
- Learn how to use a protractor to measure and draw right angles accurately.
- Explore the concept of perpendicular lines and their relationship to right angles.
- Apply the knowledge of right angles in solving geometry problems and real-world situations.

By mastering the concept of right angles, you will develop a strong foundation in geometry and problem-solving skills.

.Study GuideAlgebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer keyAlgebraic Equations Worksheet/Answer key

Algebraic Equations Worksheet/Answer keyAlgebraic Equations

Algebra (NCTM)

Represent and analyze mathematical situations and structures using algebraic symbols.

Recognize and generate equivalent forms for simple algebraic expressions and solve linear equations

Grade 6 Curriculum Focal Points (NCTM)

Algebra: Writing, interpreting, and using mathematical expressions and equations

Students write mathematical expressions and equations that correspond to given situations, they evaluate expressions, and they use expressions and formulas to solve problems. They understand that variables represent numbers whose exact values are not yet specified, and they use variables appropriately. Students understand that expressions in different forms can be equivalent, and they can rewrite an expression to represent a quantity in a different way (e.g., to make it more compact or to feature different information). Students know that the solutions of an equation are the values of the variables that make the equation true. They solve simple one-step equations by using number sense, properties of operations, and the idea of maintaining equality on both sides of an equation. They construct and analyze tables (e.g., to show quantities that are in equivalent ratios), and they use equations to describe simple relationships (such as 3x = y) shown in a table.