Select all that apply. What types of triangles have at least two acute angles?
2 answers:
<u>Answer:</u>
<u>(A) Right </u>
<u>(B) Obtuse </u>
<u>(C) Equilateral </u>
<u>(D) Isosceles</u>
<u>A right triangle must contain a right angle and two acute angles.</u>
<u>An obtuse triangle must contain an obtuse angle and two acute angles.</u>
<u>An equilateral triangle must be 60 degrees in every corner, and thus there are 2+ acute angles.</u>
<u>An isosceles triangle can have two angles that are 30 degrees (thus two acute), and a 120 degree angle.</u>
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