You may also like

problem icon

All in the Mind


problem icon

Painting Cubes


problem icon

The Old Goats


Disappearing Square


The area of a triangle is found by multiplying the base by the height then halving your answer.

(Be careful not to use the length of a side but the height from base to apex.)

Could this be to do with the way the squares are drawn? Look out for the parts of squares and how they are matched up.