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△ABC is similar to △DEF by the ​ AA Similarity Postulate ​ .

What is the measure of  ∠C?

Guest Jun 9, 2017

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Because △ABC is similar to △DEF, angle ABC should equal 60 deg as well.

$$\boxed{ \text{The sum of all interior angles of a triangle is 180}^{\circ}}$$

So Angle C = 180 - 55 - 60 = 65 deg :D

MaxWong  Jun 9, 2017
#1
+7002
+1

Because △ABC is similar to △DEF, angle ABC should equal 60 deg as well.

$$\boxed{ \text{The sum of all interior angles of a triangle is 180}^{\circ}}$$

So Angle C = 180 - 55 - 60 = 65 deg :D

MaxWong  Jun 9, 2017