Triangle Inequality
Students learn to decide whether three side lengths can form a triangle and find the possible range.
About this skill sheet
Triangle Inequality helps 7th graders decide whether three given side lengths can form a triangle and find the range of possible third sides. Aligned to CCSS 7.G.A.2, the sheet moves from a reference page through guided practice testing side-length sets to real-world application and a short assessment.
What is inside
Every 4-in-1 Skill Sheet moves a student through four phases on a single printable: a color Reference page with definitions, a worked example and a Watch Out error pair; six sequenced Practice problems; Apply word problems with an error analysis; and an Assess exit ticket, with a full two-page answer key and an ink-saver edition. A 14-slide teacher deck is included, with the teaching script in the speaker notes.
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- Reference, practice, real-world application, and an exit ticket with answer key
- A 14-slide teacher deck with the teaching script in the speaker notes
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