<prompt> Katika mchoro ulio hapa chini, tuna overlineSTparalleloverlineQR, angle P 40circ, na angle Q 35circ. Tafuta kipimo cha angle STR kwa digrii.asyjozi P,Q,R,SS,T;Q 0,0;R 1,0;P 1.1,0.5;SS 0.6 P;T R 0.6 P-R;choraT--SS--P--R--Q--SS;leboP,P,N;leboS,SS,NW;leboQ,Q,S;leboR,R,S;leboT,T,ENE;asy  <response>: Kutoka pembetatu PQR, tuna angle R 180circ - angle Q - angle P 105circ. Kwa kuwa overlineSTparallel overlineQR, tuna angle STR 180circ - angle R 75circ. 