In this angle measurements worksheet, 10th graders solve and complete 18 different types of problems. First, they find the value of x in each circle. Then, students find the value of each variable using the given chords, secants, and tangents.
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New Review Corresponding Angles: Lesson
Take a parallel view of correspondence. The resource, part of a playlist on basic geometry, introduces the corresponding angle postulate. By first identifying corresponding angles, the video highlights the relationship between the angle...
2 mins 9th - 12th Math CCSS: Adaptable
New Review 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.
5 mins 9th - 12th Math CCSS: Adaptable
Measure Angles in Standard Position Using the Coordinate Plane
The mechanics of measuring angles is a skill that is often taken for granted in an upper-level math class. This clear and detailed video presentation bridges the gap between identifying angles in geometry, and using their unit-circle...
5 mins 9th - 12th Math CCSS: Designed
Find Radian Measure by Dividing Arc Length by Radius
In an approach that meshes higher-level thinking with approachable methods, this presentation walks that fine line between mathematical rigor and applications with skill. Not only are the specific steps for finding the radian measure of...
6 mins 9th - 12th Math CCSS: Designed
Identifying a Triangle by its Sides and Angles
Identify triangles by their angle measures and side lengths by looking at and measuring angle measures and side lengths. Use Cabri Jr. to construct various triangles, then manipulate the construction to create the 6 types of triangles,...
9th - 12th Math CCSS: Designed
Learn Radian Measure of Special Angles
While many classes memorize the radian and degree relationships for special angles in the unit circle, this presentation is uniquely grounded in the "why's" behind these common angles. With an emphasis on the geometric interpretation of...
4 mins 9th - 12th Math CCSS: Designed