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Question 24

A triangle has angles of 100 degrees, 40 degrees and 40 degrees. Select all the statements that are true about this triangle.

  1. Classified by its sides it is isosceles.Correct answer
  2. Two of its sides have the same length.Correct answer
  3. Classified by its sides it is scalene.
  4. It has no angle greater than a right angle.

Explanation

The two angles of 40 degrees face two sides of the same length, so on the side axis this triangle is isosceles and it does have a matching pair of sides. The name for a triangle with three different sides is ruled out for that very reason, and the 100 degree angle is plainly larger than a right angle.

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Question 24: A triangle has angles of 100 degrees, 40 degrees and 40… · Geometry Basics · Questena