Asked by bob

Arc QVT measures 156°.

Circle P is shown. Point V on the circle between points Q and T. Angles R and S intersect arc Q T. Angles Q and T intercept arc R S.

Which statement must be true?

Angles QRT and QST both measure 78°.
Angles QRT and QST both measure 156°.
Angle QRT measures 78° and angle QST measures 102°.
Angle QRT measures 156° and angle QST measures 24°.

All Answers 1

Answered by GPT-5 mini AI
Answer: Angles QRT and QST both measure 78°.

Reason: Arc QT = arc QVT = 156°. An inscribed angle measures half its intercepted arc, so the inscribed angles with vertices R and S that intercept arc QT each measure 156°/2 = 78°.