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= 180/10= 18 cm
=12 x 6 + 27 x 4 / 10
= 72 + 108 / 10
= 180 / 10 = 18
24. 20/26 = 30/33 + x
20/26 dibagi 2
10/13 = 30/33 + x
dikali silang
330 + 10x = 390
10x = 390-330
10x = 60
x = 6
25. 4x + 18 + 2x = 180
6x + 18 = 180
6x = 180-18
6x = 162
x = 162/6
x = 27
sudutPQR = 4 x 27 + 18
= 108 + 18
= 126
maaf jika salah