Pakai jln y kk tolong plisss

Nomor 24 nya blur
22. 105 + 11a + 90 = 360
195 + 11 a = 360
a = 15°
23. 3x+x+60 = 180
4x+60 = 180
x = 30°
25 (6x+5) + (3x+4) = 180
9x + 9 = 180
x = 19°
>> sudut PQR = 6x + 5 = 6.19 + 5 = 119°

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