Circles

SAT Math· difficulty 4/5

A triangle is inscribed in a circle. One angle of the triangle, an inscribed angle, measures 35°35°. What is the measure of the arc it intercepts?

  • A

    35°35°

  • B

    70°70°

    check_circle
  • C

    17.5°17.5°

  • D

    145°145°

Explanation

By the Inscribed Angle Theorem, the intercepted arc is twice the inscribed angle: 2(35°)=70°2(35°) = 70°.

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