PaginePaginepagineapp.comProve and apply theorems about triangles (angle sum, exterior angle, isosceles). Read each problem. Draw or write to solve. Label your answer.
Worksheets › Grade 10 Math (Geometry) › Triangle Theorems › Triangle Theorems
Free Grade 10 Geometry math worksheet (Common Core G-CO.C.10): triangle theorems — mixed practice with space to reason and check, with answer key. Skill: Prove and apply theorems about triangles (angle sum, exterior angle, isosceles). Level: Grade 10 — also suits Year 11 (UK).
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Prove and apply theorems about triangles (angle sum, exterior angle, isosceles).
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Triangle Theorems: Practice A (G-CO.C.10) · Triangle Theorems: Practice B (G-CO.C.10) · Triangle Theorems: Show Your Thinking (G-CO.C.10) · Triangle Theorems: Quick Check (G-CO.C.10)
All 5 triangle theorems sheets → · Grade 10 Math (Geometry): all 10 skills → · All Common Core grades
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