Geometry
10.G.15
10th Grade · Tennessee (TN)
Standard
Prove theorems about triangles. Theorems include: measures of interior angles of a triangle sum to 180°; base angles of isosceles triangles are congruent; the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length; the medians of a triangle meet at a point.
Study materials
Study guide, practice problems, review, and practice test for this standard.
- Parent GuideComing soon
- Exam StrategyComing soon
- Common MistakesComing soon
- Study GuideComing soon
- Practice ProblemsComing soon
- Word ProblemsComing soon
- Mixed PracticeComing soon
- Multi-Step ProblemsComing soon
- Multi-Standard ProblemsComing soon
- Multi-Step Multi-StandardComing soon
- ReviewComing soon
- Practice TestComing soon
- Answer keyComing soon
Interactive practice
Quizzes, typed answers, and flashcards for this standard — coming soon.
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Quiz
Multiple-choice questions with instant feedback
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Typed practice
Type answers and check them
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Flashcards
Vocabulary and key facts
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Mixed quiz
Harder mixed review for this standard