A worksheet on deciding whether a given triangle is an isosceles triangle using the properties of isosceles triangles( two equal sides, two equal angles, any two of the median, bisector and height corresponding to the same side coincide). Detailed solutions are included.
Master geometry proofs with this no-prep isosceles triangles revision worksheet! Covers base angles, interior angle sums, medians, and heights alongside reasoning tasks. Includes full worked answers. Perfect for GCSE Maths!
Looking for a clear, thorough resource to help your students master geometric reasoning? This printable Isosceles Triangles Properties Worksheet offers intensive practice analyzing triangle rules, calculating missing angles, and evaluating geometric line proofs.
This is a no-prep, printable PDF resource, meaning you can simply download, print, and hand it straight to your classes! It is excellent for deep-dive independent practice, homework tasks, revision lessons, or structured cover work.
What’s Included?
• 3 Pages of Structured Student Exercises: Clear geometric diagrams showcasing 8 varied triangle problems with clean workspace layouts.
• 3 Pages of Full, Step-by-Step Solutions: A complete, beautifully worked marking guide displaying every angle calculation and explaining precisely how medians, altitudes, and bisectors prove or disprove isosceles properties. Perfect for quick marking or student self-assessment!
Comprehensive Skills Covered
•** Isosceles Properties:** Proving isosceles rules through matching sides or base angles.
•Angle Sum of a T riangle: Calculating interior boundaries to identify matching angles.
• Advanced Line Analysis: Examining whether perpendicular heights, medians, and angle bisectors coincide.
• Exam Ready: Ideal for GCSE Maths (9-1) foundation and higher tiers, Key Stage 3 extensions, and Scottish National 5 curriculum tracks.
Get this resource as part of a bundle and save up to 43%
A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
Bundle
Angle Relationships, Parallel Lines & Triangles Geometry Bundle | GCSE 9-1
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. Master angle facts and triangle properties with this complete geometry worksheet bundle! Perfectly optimized for KS3 and GCSE 9-1 math revision (Foundation and Higher), this print-and-go pack covers parallel lines, angle types, and multi-step equations with full step-by-step worked solutions. ________________________________________ Looking for a rigorous, print-and-go resource to help your students master angle rules and geometric reasoning? This GCSE 9-1 Angles, Lines and Triangles Worksheet Bundle contains highly structured practice sheets designed to build fluency and algebraic confidence. Moving from basic angle classification to multi-step exam-style equations, this bundle is perfect for formal lessons, independent revision, homework packs, cover work, or intervention groups! Every page includes an uncrowded, student-friendly layout and comes paired with a complete, step-by-step worked solution key showing the exact algebraic workings to solve for \(x\). ________________________________________ **What's Included in This Bundle?** • **Types of Angles & Triangles:** Identification mastery for acute, obtuse, right, straight, and reflex angles, alongside scalene, isosceles, and equilateral properties. • **Complementary, Supplementary & Vertically Opposite Angles:** Multi-step algebraic equations requiring students to set up expressions that add up to 90 or 180 degrees. • **Angles in Parallel Lines:** Clear diagrams focusing on alternate, corresponding, and co-interior/allied angle theorems (using formal geometric reasons). • **Interior & Exterior Angles of Triangles:** Comprehensive practice applying the triangle angle sum theorem (180 degrees) and the exterior angle theorem. ________________________________________ **Perfect For:** • KS3 Maths: Building a strong foundational mastery of basic angle facts and algebraic manipulation. • KS4 / GCSE 9-1 Prep: targeted revision for both Foundation and Higher tier students aiming for maximum marks on geometry questions. • Cover Lessons & Homework: Structured, self-explanatory layout that requires zero preparation from you or a cover teacher. ________________________________________
£4.95
Bundle
Triangles (sum of angles-inequalities-isosceles) Bundle
A collection of three worksheets on the following topics: * Sum of angles in a triangle: evaluating the third angle in a triangle given the other two using the fact that their sum is 180 degrees * Triangle inequalities: deciding whether three numbers can represent the lengths of the sides of a triangle and determining the possible lengths of the third side of a triangle given the lengths of the other two sides * Isosceles triangles: deciding whether a given triangle is an isosceles triangle using the properties of isosceles triangles( two equal sides, two equal angles, any two of the median, bisector and height corresponding to the same side coincide). Detailed solutions are included.
£2.90
Something went wrong, please try again later.
This resource hasn't been reviewed yet
To ensure quality for our reviews, only customers who have purchased this resource can review it
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.
£1.50