A double-sided PDF worksheet with questions and answers on 3D Right-Angles. The worksheet has skill and mastery questions and a full marking grid so students have a gap-analysis of what they understand and what they need to improve. Suitable for higher GCSE. The download includes the Questions PDF and the Answers PDF. Topics included: Using Pythagoras In 3D Using Trigonometry In 3D Skill Questions: Find Diagonal In Cube Using Pythagoras’ Theorem Find Diagonal In Cuboid Using Pythagoras’ Theorem Find Pyramid Height Using Pythagoras’ Theorem Find Simple Angle In Cuboid Using Trigonometry Find Angle In Cuboid Using Trigonometry Find Angle In Pyramid Using Trigonometry Mastery Questions: Find Diagonal In Triangular Prism Using Pythagoras’ Theorem Find Longest Diagonal In Cuboid Using Pythagoras’ Theorem Find Angle Of Apex In Cone Using Trigonometry Find Diagonal In Triangular Prism Using Trigonometry Diagonal Around A Cylinder Using Pythagoras Find Angle In Cube With No Lengths Using Trigonometry