Triangle $ABC$ is an equilateral triangle. Triangle $ACD$ is an isosceles triangle. $AB$ is pa

Question

Triangle $ABC$ is an equilateral triangle. Triangle $ACD$ is an isosceles triangle. $AB$ is parallel to $EC$. Find angle $ACE$, angle $ADF$, stating your reasons clearly. What is the name of the triangle $ABD$?

Accepted Answer

(a)(i) $\angle ACE=60^\circ$ (a)(ii) $\angle ADF=150^\circ$ (b) A right-angled triangle

Angles in Equilateral and Isosceles Triangles with Parallel Lines

Angles in Equilateral and Isosceles Triangles with Parallel Lines

Video Solution:

Solution:

Solution locked