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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

5. Isosceles and Equilateral Triangles

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Exercise 49 Page 381

What is the measure of an obtuse angle? What is the sum of the interior angles of a triangle equal to?

It is not possible, see solution.

Practice makes perfect

An obtuse angle is an angle whose measure is greater than 90^(∘). We know that the interior angles of a triangle must add to 180^(∘). Therefore, a triangle can never have more than one obtuse angle.

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Exercises p.378-382