soal mtk kelas 8 no copas pake cara ya

1. Jawab :

SM² = SK²+SK²
SM² = 6²+8²
SM² = 36+64
SM² = 100
SM = √100
SM = 10

2. Jawab :
a. SM² = SK²+SK²
20² = 12²+x²
400 = 144+x²
400-144 = x²
256 = x²
√256 = x
16 = x

b. * Lihat segitiga ABD
SM² = SK²+SK²
AB² = BD²+AD²
13² = BD²+5²
169 = BD²+25
169-25 = BD²
144 = BD²
√144 = BD
12 = BD.

* Lihat segitiga BCD
SM² = SK²+SK²
BC² = CD²+BD²
x² = 12²+35²
x² = 144+1225
x² = 1369
x = √1369
x = 37

semoga membantu:)