Illustrative Mathematics
Illustrative Mathematics: 8.g Find the Angle
In this task, 8th graders have to reason with angles and angle measurements, including the sum of the angles in a triangle, to deduce information from a picture. Includes a GeoGebra worksheet that the teacher can use for demonstration...
Khan Academy
Khan Academy: Find Angles in Triangles
Find missing angle measures using the properties of triangles. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
![Educaplus: Medida De Angulos [In Spanish] Activity](https://content.lessonplanet.com/knovation/original/438782-60bc9e768dd7b8aa5c7d013dceea2c55.jpg?1661599529 "Educaplus: Medida De Angulos [In Spanish] Activity")
Educaplus (Jesús Peñas Cano)
Educaplus: Medida De Angulos [In Spanish]
Practice measuring angles with the protractor with this interactive activity.
Alabama Learning Exchange
Alex: The Clock Tower
This project resulted from the collaboration of a computer aided drafting teacher (pre-engineering), Chris Bond, and a math teacher, Lee Cable, (Hewitt-Trussville High School) to provide higher math expectations in CT and real life...
Texas Instruments
Texas Instruments: Parallel Lines, Transversals and Angles
This activity allows students to: 1. Identify the pairs of angles formed when a transversal intersects two lines.: 2. Measure angles Using Cabri Jr. 3. Identify relationships between pairs of angles when a transversal intersects parallel...
CK-12 Foundation
Ck 12: Geometry: Relation of Polygon Sides to Angles and Diagonals
[Free Registration/Login may be required to access all resource tools.] Find interior angle measures of polygons by drawing diagonals to create triangles.
Common Core Sheets
Common Core Sheets: Geometry 7.g.5 Worksheets
Print or create worksheets or flashcards to assess students' understanding of angle measure, area, surface area, and volume.
Khan Academy
Khan Academy: Angles in Circles
Practice measuring angles using a circle protractor, solve problems about angles as part of a circle.
AAA Math
Aaa Math: Types of Triangles Based on Angles
Students can practice classifying triangles based on angle measurements through a series of self-check exercises and timed learning games.
Texas Instruments
Texas Instruments: Grandparents and Special Friends Day
This lesson was designed for our Grandparents and Special Friends day. It can be used for any visitation day, or an open house. The lesson is designed to review percent of a whole and the sector of the circle representing the percentage....
Mangahigh
Mangahigh: Shape: The Angles Inside a Triangle
Test your knowledge of the missing angle measure.
Mangahigh
Mangahigh: Shape: Calculating Angles Around a Point
Determine angle measures based upon the given information.
Khan Academy
Khan Academy: Quadrilateral Angles
Find missing angle measures in quadrilaterals. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Soft Schools
Soft Schools: Measurement Quiz
This online quiz is multiple choice and consists of ten questions, some of which are word problems. The quiz concentrates on unit measurements and conversions, abbreviations, and angle measurements with the use of a protractor, and a...
Khan Academy
Khan Academy: Find Angles in Congruent Triangles
Given two triangles, determine whether they are congruent and use that to find missing angle measures. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Other
Elms Environmental Education Center: How to Use a Clinometer
Offers instructions in how to use a clinometer, an instrument used by foresters for measuring angles in order to determine the height of a tree. The mathematics behind a clinometer is also explained.
Alabama Learning Exchange
Alex: Arc Lengths and Sector Areas
Students will work in cooperative groups to discover the relationships between arc length, central angle measure, and circumference. They will also discover the relationship between circle area, central angle measures, and sector area....
Shodor Education Foundation
Shodor Interactivate: Image Tool
Measure angles, distances, and areas in several different images (choices include maps, aerial photos, and others). A scale feature allows the user to set the scale used for measuring distances and areas.
Khan Academy
Khan Academy: Radians & Degrees
Convert angle measures given in degrees to radians and vice versa.
Mangahigh
Mangahigh: Shape: Use Trigonometry to Find Angles
Use trigonometry to determie the angle measures.
Mangahigh
Mangahigh: Shape: Use the Law of Sines for Finding Angles
Test your knowledge of using the law of sines to determine angle measures.
Khan Academy
Khan Academy: Find Angles in Congruent Triangles
Given two triangles, determine whether they are congruent and use that to find missing angle measures.
Wolfram Research
Wolfram Math World: Tetrahedron
This math site defines a tetrahedron, gives reference to the Platonic solid, and gives views from varying perspectives. It also provides formulas for veritices of a tetrahedron lieing along the the positive X axis, formulas for area,...
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