Jawab:
KM²=10²+16²-2(16)(10)cos 45
=100+256-2(10)(16)()
=356-160
=129.7
KM=
=11,4cm
Jadi, jawabannya adalah 11,4 cm (D).
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Jawab:
KM²=10²+16²-2(16)(10)cos 45
=100+256-2(10)(16)()
=356-160
=129.7
KM=
=11,4cm
Jadi, jawabannya adalah 11,4 cm (D).