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### We found 96 resources with the concept interior angles

Videos (Over 2 Million Educational Videos Available)

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Other Resource Types
(96)

Lesson Planet

#### Mathematics Vision Project: Interactive Applets

Ready, set, go! The Mathematics Vision Project provides a collection of 10 Interactive Applets that follow the progression of learning—to practice, develop, and solidify understanding. The interactives use engaging materials that include...

Lesson Planet

#### Utah Middle School Math Project: 7th Grade

The eight resources in this collection provide tweens with the tools and protocols for solving problems which in turn enable them to make the transition from acquiring basic knowledge to creatively applying it. The lessons in the...

Lesson Planet

#### Common Core Math: 8th Grade

Check out the Common Core with a collection that represents all the 8th grade math standards. Most resources engage multiple standards but the main one is listed on the notes section of each tab.

Lesson Planet

#### Inequalities in a Triangle

Stuck with triangle proofs? Take a 180° and provide learners with a guided worksheet that tests their knowledge with triangle inequalities. The questions require different types of proofs that range in levels of difficulty.

Lesson Planet

#### Geometry Definitions

Geometry is full of shapes, figures, and corresponding things here and there. The guide shares all of the key pieces of geometric information in a nicely color-coded and labeled sheet.

Lesson Planet

#### Triangle's Interior Angles

Given a pair of parallel lines and a triangle in between, geometers prove that the sum of the interior angles is 180 degrees. This quick quest can be used as a pop quiz or exit ticket for your geometry class.

Lesson Planet

#### How Much is in There? A Polygon Investigation

Try to find the triangles in various polygons. An investigation has learners develop a formula for the sum of the measures of the interior angles of a polygon. They use manipulatives to partition each polygon into triangles, then...

Lesson Planet

#### Tiling a Kitchen Floor

Cover the floor with math. Pupils work to determine the proper shape to cover a kitchen floor. They first determine the number of tiles to purchase and configure their placement to reduce the amount of waste. Teams finish by creating a...

Lesson Planet

#### Forming and Solving Equations

What does geometry have to do with geometry? The portion of a review series for a math assessment highlights how equation formation is assessed on the test. Pupils use geometric concepts such as perimeter and the sum of the measures of...

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#### Tessellations

Tessellate to fascinate your pupils. Watching a video helps them first understand the idea of tessellations. It then shows how the interior angles of shapes undergoing tessellations will sum to 360 degrees at points where their vertices...

Lesson Planet

#### Angles in Quadrilaterals

Four angles hath quadrilaterals, but what be their measures? After watching a video, young mathematicians consider the interior angles of quadrilaterals. They see how to find missing angle measures using the properties of quadrilaterals.

Lesson Planet

#### Interior Angles in Convex Polygons: Lesson

How are angles and sides related? Given several regular convex polygons, the video shows how to calculate the sum of their interior angles. The segment in a playlist on geometry shows how to find the measure of one angle if the polygon...

Lesson Planet

#### Exterior Angles Theorems: Lesson

Use the inside to find the outside. The resource presents two theorems dealing with exterior angles of a triangle. Using the two theorems, the segment from a larger geometry playlist works problems to solve for angle measures.

Lesson Planet

#### Triangle Sum Theorem: Lesson

The measures all add up. The presentation, part of a helpful playlist on geometry, provides the statement of the Triangle Sum Theorem. Using the theorem, the video shows how to find the missing measure of an angle.

Lesson Planet

#### Same Side Interior Angles: Lesson

Supplement your scholars' knowledge of angles involved with parallel lines. Using the properties of alternate interior angles and linear pairs, the presenter shows interior angles located on the same side of a transversal of parallel...

Lesson Planet

#### Parallel and Skew Lines: Lesson

Is it possible for a pair to be parallel and skew? The resource provides the class opportunities to find out by examining the properties of parallel and skew lines. Part of a playlist on basic geometry, the video includes a brief...

Lesson Planet

#### Conjectures and Proof

Transform proofs using triangle rotations. By rotating a triangle around various points, class members develop proofs. Participants prove relationships of alternative interior angles formed by parallel lines and the sum of the interior...

Lesson Planet

#### Interior Angles of a Polygon

The sum of angles of a polygon—what do triangles have to do with it? Given the formula for the sum of the measures of the interior angles of a convex polygon, pupils explain why it finds the sum. Learners may use a diagram to help with...

Lesson Planet

#### Camping Calculations

At what angle should you pitch your tent? Given a diagram of a tent, pupils find the measure of a missing angle of the tent frame. Individuals use the properties of angles of polygons to determine the measure of two congruent angles in a...

Lesson Planet

#### Angles, Arcs, and Segments in Circles

Investigate relationships between angles, arcs, and segments in circles. Pupils use geometry software to discover the relationships between angles, arcs, and segments associated with circles. Class members use similar triangles to...

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#### Lines and Angles

Explore angle relationships associated with transversals. Pupils construct parallel lines with a transversal and find the measures of the angles formed. They figure out how the different angles are related before constructing...

Lesson Planet

#### Angles in Polygons

Polygons — it's all about the angles. Groups work with dynamic geometry software to find the sum of the measures of the angles of various polygons. After finding the information for several polygons, the groups generate a formula that...

Lesson Planet

#### Angles: Parallel Lines

Viewers are presented with seven problems with parallel lines and angle relationships and must use the given information to find the measures of specific angles. To finish, they explain their process in finding the measures in the problems.

Lesson Planet

#### Angles in Polygons

Show your class that finding angle measures is a regular calculation with a resource that provides 12 problems dealing with the measures of angles in regular polygons. Pupils use formulas for the sum of measures of angles in a polygon to...