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# Unit 1: Geometry

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## About this unit

Geometric shapes are all around us. The world is built with them. In this series of tutorials and exercises you'll become familiar with Euclidean geometry and terms like segments, scale drawings, parts of a circle, area, volume, angles, and geometric figures.

### Learn

### Practice

- Radius and diameterGet 5 of 7 questions to level up!
- Circumference of a circleGet 3 of 4 questions to level up!
- Area of a circleGet 5 of 7 questions to level up!
- Circumference of parts of circlesGet 3 of 4 questions to level up!
- Area of parts of circlesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Circumference and rotationsGet 3 of 4 questions to level up!
- Area and circumference of circles challengeGet 3 of 4 questions to level up!
- Shaded areasGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Name anglesGet 3 of 4 questions to level up!
- Identifying supplementary, complementary, and vertical anglesGet 5 of 7 questions to level up!
- Complementary and supplementary angles (visual)Get 3 of 4 questions to level up!
- Complementary and supplementary angles (no visual)Get 5 of 7 questions to level up!
- Vertical anglesGet 3 of 4 questions to level up!
- Finding angle measures between intersecting linesGet 3 of 4 questions to level up!

### Learn

### Practice

- Finding missing anglesGet 5 of 7 questions to level up!
- Create equations to solve for missing anglesGet 5 of 7 questions to level up!
- Unknown angle problems (with algebra)Get 5 of 7 questions to level up!

Level up on the above skills and collect up to 720 Mastery points

### Practice

- Cross sections of 3D objects (basic)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Explore scale copiesGet 3 of 4 questions to level up!
- Corresponding sides and pointsGet 3 of 4 questions to level up!
- Identify scale copiesGet 3 of 4 questions to level up!
- Identify scale factor in scale drawingsGet 3 of 4 questions to level up!
- Interpret scale factor in scale drawingsGet 3 of 4 questions to level up!
- Scale copiesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Learn

### Practice

- Scale drawingsGet 3 of 4 questions to level up!
- Construct scale drawingsGet 3 of 4 questions to level up!
- Relate scale drawings to areaGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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Level up on all the skills in this unit and collect up to 2,900 Mastery points!