Jawapan

2016-09-22T21:11:01+08:00
25 the answerrrrrrrrrrrrrrrrrrrrrrrrrrrr
you have toooo
what
is theres 90 degree on the line PSU and TR
no
answer please :(
2016-09-22T23:44:29+08:00
If I say angle UTS = angle TSU =angle PSR = x..... x=180°-85°-20°.... x=180°-105°=75°..... 2x+y=180°, x=75°.... 2(75)+y=180°.....y=180°-150°=30°... so, answer is B
PSU=TSR=straight line, therefore angleQPU=angleRSU=85+20=105. TSR=straight line, therefore angleTSU=180-105=75. TS=SU, therefore angleTSU=angleSTU=75. So, y=180-2(75)=30.