General SAT (College Board) Mathematics: Questions 1 of 498

Appeared in Year: 2008

Question MCQ▾

If the average (arithmetic means) of the measures of two non-congruent angles of an isosceles triangle is , which of the following is the measure of one of the angles of the triangle? (January)

Choices

Choice (5)Response

a.

b.

c.

d.

e.

Edit

Answer

b.

Explanation

  • Let, triangle ABC be isosceles triangle.
  • From question, the average of the measure of two non – congruent angles is . Therefore,

    and are non – congruent angles.

  • As we know,

  • From equation (1) ,

  • Substitute this value of in equation (1) ,

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