Mohon bantuannya ya
jgn jawab asal
beserta caranya
jgn jawab asal
beserta caranya
Jawaban:
a = Panjang PQ
a = √[(-1 - 2)² + (3 - 1)² + (5 - (-3))²]
a = √[(-3)² + 2² + 8²]
a = √[9 + 4 + 64]
a = √77
b = panjang PR
b = √[(3 - 2)² + (-2 - 1)² + (7 - (-3))²]
b = √[1² + (-3)² + 10²]
b = √[1 + 9 + 100]
b = √110
a.b
= √77 . √110
= √8470
semoga membantu,
met belajar skuy :)
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