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Types of angles worksheet (with solutions)

Types of angles worksheet (with solutions)

Subject: Mathematics

Age range: 11-14

Resource type: Worksheet/Activity

Last updated

23 July 2026

docx, 88.05 KB
docx, 88.05 KB

A worksheet on classifying angles as right, straight, acute, obtuse or reflex. Solutions are included.

Get this resource as part of a bundle and save up to 45%

A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

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Identifying & Classifying Angles and Triangles Geometry Worksheets with Keys

A collection of three worksheets. Two worksheets on classifying angles as right, straight, acute, obtuse or reflex and a worksheet on determining the type of a given triangle with respect to its interior angles (acute-angled, obtuse-angled, right-angled) and with respect to its sides (scalene, isosceles, equilateral). Detailed solutions are included. Master the fundamentals of geometry with this comprehensive, classroom-tested worksheet pack! Designed to guide students seamlessly from basic angle classification to multi-step triangle identification, this resource is perfect for main lessons, homework tasks, retrieval practice, or targeted interventions. **What’s Included:** • **Section 1: Angle Classification** – Students learn to recognize and classify independent angles from numeric degree measurements and precise visual geometric models. Covers acute, obtuse, right, straight, and reflex angles. • **Section 2: Classifying Triangles by Angles** – Structured exercises challenging students to evaluate interior angle properties to determine if a triangle is acute-angled, obtuse-angled, or right-angled. • **Section 3: Classifying Triangles by Sides** – Focused geometry problems where students categorize shapes based on side lengths or given corner properties into scalene, isosceles, or equilateral triangles. • **Full Step-by-Step Solutions Key** – Features complete, fully worked-out solutions for every problem—ideal for easy grading, student self-assessment, or independent study tracking. **Why Teachers Love It:** • **Scaffolded Progression:** Questions scale gracefully from basic recognition to geometric application, keeping high-achievers engaged while supporting lower-ability students. • **Clean, Uncluttered Layout:** Generous spacing around diagrams allows students plenty of room to write equations and show their working directly on the sheet. • **Zero Prep Required: **Simply download, print, and distribute directly to your class. ________________________________________

£2.70
Bundle

GCSE 9-1 Angles, Lines and Triangles Bundle

A collection of 6 worksheets on angles, lines and triangles based on the GCSE 9-1 specification. The following worksheets are included: * Types of angles * Complementary, supplementary and opposite angles * Angles in parallel lines * Sum of angles in a triangle * Exterior Angles of a Triangle * Isosceles, Equilateral and Right-Angled Triangles Detailed solutions are included.

£4.95

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