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maka 60 - 2 = 58 jam
2. 130°, itu sudut tumpul, nah liat di garis R, karna posisinya begitu, maka ambil yg 130°
3. dam -> m = dikali 10, mm - > m = dibagi 1000, dm -> m = dibagi 10
= 180 + 2 - 15 = 167 m
4. 90km/jam =...m/det
=> ( 1 jam = 60 menit = 3600 det)
=+
=> 25m/det
5.
=>
=> kec Rata2 = 15m/det