Han Song's answer to Danish Arman's Primary 5 Maths Angles & Geometry Singapore question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Han Song
Han Song's answer
89 answers (A Helpful Person)
1st
Alternate angle & isosceles triangle rule

Why angle ACB = angle BAC?

DC = AB and AD = BC

Henceforth, ABC is an isosceles triangle.