TEOREMA PHYTAGORAS
Karena itu segitiga sama kaki, maka bisa kita gunakan phytagoras :
OC² + OB² = BC²
OC² + 5² = 13²
OC² = 169 -25
OC = √144
OC = 12 cm
Luas segitiga :
= ½ × alas × tinggi
= ½ × 10 × 12
= 60 cm²
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TEOREMA PHYTAGORAS
Karena itu segitiga sama kaki, maka bisa kita gunakan phytagoras :
OC² + OB² = BC²
OC² + 5² = 13²
OC² = 169 -25
OC = √144
OC = 12 cm
Luas segitiga :
= ½ × alas × tinggi
= ½ × 10 × 12
= 60 cm²