In an equilateral $ riangle PQR$ with $QR$ extended to $S$, the interior adjacent angle at $R$ is—

Question

In an equilateral $	riangle PQR$ with $QR$ extended to $S$, the interior adjacent angle at $R$ is—

Accepted Answer

$60°$

Answer

$30°$

Answer

$90°$

Answer

$120°$

In an equilateral △PQR\triangle PQR△PQR with QRQRQR extended to SSS, the interior adjacent angle at RRR is—