Congruence and similarity

By the end you’ll be able to

• Use the congruence conditions SSS, SAS, ASA and RHS to prove that two triangles are congruent, with a reason for each statement (Higher)
• Find missing lengths in similar shapes, including overlapping and nested similar triangles
• Use the scale factors $k$, $k^2$ and $k^3$ for length, area and volume of similar shapes and solids (Higher)