Angles - points, lines and parallel lines

problem
Isosceles seven

Age

14 to 16

Challenge level

Is it possible to find the angles in this rather special isosceles triangle?
problem
Triangle in a trapezium

Age

11 to 16

Challenge level

Can you find and prove the relationship between the area of a trapezium and the area of a triangle constructed within it?
article
Using GeoGebra

Never used GeoGebra before? This article for complete beginners will help you to get started with this free dynamic geometry software.
problem
Polygon rings

Age

11 to 14

Challenge level

Join pentagons together edge to edge. Will they form a ring?
list
Being collaborative - Primary geometry

Age

5 to 11

Challenge level

Geometry problems for primary learners to work on with others.
list
Being resilient - Lower Primary geometry

Age

5 to 7

Are you resilient enough to solve these geometry problems?
list
Being resilient - Primary geometry

Age

5 to 11

Challenge level

Geometry problems at primary level that may require resilience.
list
Being resourceful - Lower Primary geometry

Age

5 to 7

Geometry problems for lower primary that will get you thinking.
list
Being resourceful - Primary geometry

Age

5 to 11

Challenge level

Geometry problems at primary level that require careful consideration.
list
Being curious - Primary geometry

Age

5 to 11

Challenge level

Geometry problems for inquiring primary learners.