Question

in figure angle STP = 25 degree , angle PQR = 105 and angle SQR = 30 , find angle QSR and angle PTS​

Answer 1

Answer:

PQT+∠PQR=180∘ (Straight angle made on line TR at point Q)

110∘+∠PQR=180∘∠PQR=180∘−110∘=70∘

In △PQR

∠PSR=∠PQR+∠PRQ (Exterior angle of triangle is eqal to sum of two interior angles)

135∘=70∘+∠PRQ∠PRQ=135∘−70∘=65∘