Similar Triangles Analysis: Comparing Angles 80°, 60°, and 40° with Given Measurements

Question

Are the triangles above similar?

00:00 Are the triangles similar?

00:04 The sum of angles in a triangle equals 180

00:12 We'll substitute appropriate values and solve for the missing angle

00:26 This is the size of angle C

00:35 Equal angles according to given data (G)

00:41 Equal angles (G)

00:51 The triangles are similar according to A.A

01:02 And this is the solution to the question

Answers b and c are correct.