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What is the measure of a straight angle?

  • A.90°
  • B.180°
  • C.270°
  • D.360°

Answer: B

A straight angle is the angle formed by a straight line - half a full turn.

\[ \frac{360^{\circ}}{2} = 180^{\circ} \]

A right angle is a quarter turn (90°) and a complete angle a full turn (360°).

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