Lines and planes in three dimensions (AQA GCSE Further Maths): Quizzes

A flat surface extending infinitely

The steepest path down the plane

Three relationships

Lines that don't meet & aren't parallel

A road passing under a bridge

Three ways

Along a straight line

The dihedral angle

$a^2 + b^2 + c^2 = d^2$

$V = \frac{1}{3} \times$ base area $\times$ height

Two relationships

A perpendicular from line to plane

Break 3D problems into 2D triangles