Copyright © University of Cambridge. All rights reserved.

'Terminology' printed from

Show menu

An isoceles triangle circumscribing and equilateral triangle with angles between the vertices of the equilateral triangle and isosceles triangle of a, b and c The green triangle is an isosceles triangle while the blue triangle is an equilateral triangle.

Find $a$ in terms of $b$ and $c$.

What can you say about the triangles if $a = b = c$?