Triangle Classification: Analyzing Angles 53°, 117°, and 21°

What kind of triangle is shown in the diagram below?

535353117117117212121AAABBBCCC

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Step-by-step video solution

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00:00 What triangle is given in the drawing
00:03 Let's start by checking if the triangle is indeed a triangle
00:06 The sum of angles in a triangle equals 180
00:09 Let's check if this holds true
00:23 We can see that the sum of angles is greater than 180, therefore it's not a triangle
00:27 And this is the solution to the question

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1

Understand the problem

What kind of triangle is shown in the diagram below?

535353117117117212121AAABBBCCC

2

Step-by-step solution

We calculate the sum of the angles of the triangle:

117+53+21=191 117+53+21=191

It seems that the sum of the angles of the triangle is not equal to 180°,

Therefore, the figure can not be a triangle and the drawing is incorrect.

3

Final Answer

The triangle is incorrect.

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Indicates which angle is greater

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