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3) <RQP = <RSP karena menghadap busar yang sama yaitu RP<RQP = 1/2 <ROP
= 1/2 (110°)
= 55°
<RST termasuk dalam segitiga RST yang jumlah sudutnya 180°
<RST = 180° - (3x+x)
= 180° - 4x
<RSP = sudut pelurus dengan <RST
= 180° - (180° - 4x)
= 4x
diatas diketahui <RSP = 55°
4x = 55°
x = 13,75°
a) <PTR = 3x
= 3(13,75)
= 41,25°
b) <QPS = <SRQ karena menghadap busur yang sama yaitu SQ
<QPS = 13,75°
< PWS = termasuk dalam segitiga PWS
= 180° - 55° - 13,75°
= 111,25°
<PWR = berpelurus dengan <PWS
= 180 - 111,25
= 68,75°
c) <RWQ = < PWS
= 111,25°
d) <PSR = <PQR = 55°