Question

Jamie says that if she knows only the measure of one angle in an isosceles triangle, she can always determine the measures of the other two angles. Denise disagrees with her.

Who do you think is correct, Jamie or Denise?

Explain your reasoning. Include specific examples to support your answer.

Answer 1

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Explanation:

Answer 2

Jamie is correct

Explanation:

Jamie is correct.

Example: isosceles triangle ABC AB=AC

∠B = ∠C ∠A + ∠B + ∠C = 180°

if ∠A = x ∠B = ∠C = 1/2 * ( 180° - x)

if ∠B or ∠C = x ∠A = 180° - 2x