Recognise right angles in shapes.
Acute, Right, and Obtuse Angles Worksheets
recognise right angles in shapes diff orientations
Classifying Angles Worksheets
Angle - Wikipedia
Year 3 Properties of Shape – Right angles in shapes – Lesson 2
4th Grade Geometry
Geometry & shapes in Year 6 (age 10–11) - Oxford Owl for Home
Corresponding Angles: A Fundamental Geometry Concept
Grade 2 Geometry Worksheet
2-Dimensional Geometric Shapes
Right Angles - Maths with Mum