Complementary Angles (B)
For this complementary angles worksheet, students use their geometry skills to identify the missing angle measurements in each set of 6 complementary angles.
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Sine and Cosine of Complementary Angles Lesson Seed
This resource suggests various activities to establish the relationship between the sine and cosine of complementary angles. The activities have learners making conjectures based on their explorations and providing rationales to support...
9th - 11th Math CCSS: Designed
New Review Solving for Unknown Angles Using Equations
They say a picture is worth a thousand words — and your pupils may agree after this lesson! They read a geometric description and create a diagram from that description. Their diagrams helps them to find unknown measures based on...
7th Math CCSS: Designed
Complementary and Supplementary Angles: Geometry "Nspired"
Learners investigate complementary and supplementary angles. They use dynamic geometry (TI-nspire) software to manipulate rays to identify the conditions necessary to create complementary and supplementary angles. They find the measure...
4th - 8th Math
Sine and Cosine of Complementary Angles and Special Angles
Building trigonometric basics here will last a mathematical lifetime. Learners expand on the previous lesson in a 36-part series by examining relationships between the sine and cosine of complementary angles. They also review the ratios...
9th - 10th Math CCSS: Designed
Postulates, Angles, and Their Relationships
More than a activity, learners go through geometry topics example by example on the nicely organized handout. From postulates to classifying angles, there are rules and examples provided for each topic. The ten pages of problems provide...
8th - 11th Math CCSS: Adaptable
Find Angle Measurements Using Complementary and Supplementary Angles
How can geometry learners remember the difference between supplementary and complementary angles? Not only will the video explain how to remember these two angles, but it also demonstrates how to find unknown angles knowing the degree of...
4 mins 6th - 8th Math CCSS: Designed