High School

An isosceles triangle has an angle that measures 66 degrees. What are the possible measures for the other two angles?

Answer :

Answer:

the measure of the two congruent angles is 57°

Step-by-step explanation:

  1. the sum of the interior angles in a triangle is 180°
  2. it's an isosceles triangle with ONE angle of 66°
  3. the angles at the base are congruent

so

(180 - 66) : 2 =

114 : 2 =

57

----------------------------

57 + 57 + 66 = 180

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