In $ riangle ACR$ and $ riangle ADR$, the included angle $\angle ARC = \angle ARD$ equals—

Question

In $	riangle ACR$ and $	riangle ADR$, the included angle $\angle ARC = \angle ARD$ equals—

Accepted Answer

a right angle

Answer

an acute angle

Answer

an obtuse angle

Answer

a straight angle

In △ACR\triangle ACR△ACR and △ADR\triangle ADR△ADR, the included angle ∠ARC=∠ARD\angle ARC = \angle ARD∠ARC=∠ARD equals—