A heptagon is a polygon with seven sides and seven angles. The sum of the interior angles of a heptagon is 900 degrees.

- A heptagon has 7 sides and 7 angles.
- The sum of the interior angles of a heptagon is 900 degrees.
- The exterior angles of a heptagon add up to 360 degrees.
- A regular heptagon has all sides and angles equal in measure.

Sum of interior angles = (n - 2) * 180°, where n is the number of sides

Sum of exterior angles = 360°

- What is the sum of the interior angles of a heptagon?
- What is the measure of each interior angle in a regular heptagon?

Answer: The sum of the interior angles of a heptagon is 900 degrees.

Answer: In a regular heptagon, each interior angle measures 128.57 degrees.

1. Find the measure of each interior angle of a regular heptagon.

2. If the measure of one exterior angle of a heptagon is 45 degrees, what is the measure of each interior angle?

.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.