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TO = tinggi limas
OA = 1/2 × akar (8^2 + 6^2)
OA = 1/2 × akar (64 + 36)
OA = 1/2 × akar 100
OA = 1/2 × 10
OA = 5 cm
TO = akar (13^2 - 5^2)
TO = akar (169 - 25)
TO = akar 144
TO = 12 cm
luas alas limas = p x l = 8 × 6 = 48 cm^2
volume limas = 1/3 × luas alas × tinggi = 1/3 × 48 × 12 =192 cm^3
8² + 6² = Diagonal²
64 + 36 = Diagonal²
100 = Diagonal²
√100 = √Diagonal²
10 = Diagonal
b = Diagonal : 2
= 10 cm : 2
= 5 cm
c = TA
= 13 cm
a² + b² = c²
a² = c² - b²
a² = 13² - 5²
a² = 169 - 25
a² = 144
√a² = √144
a = 12
t limas = a
= 12 cm
V = 1/3 × La × t
= 1/3 × p × l × t
= 1/3 × 8 cm × 6 cm × 12 cm
= 8 cm × 2 cm × 12 cm
= 192 cm³
Jadi volume limas tersebut adalah 192 cm³