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keliling 40 brrti 40/4 : 10
luas alas 10 x 10 : 100
tinggal masukin rumus
1/3 x 100 x 24
800cm
40 = 4 × S
S = 40/4
S = 10 cm
maka Luas Alasnya
L = S²
= 10²
= 100 cm²
dengan t = 24 cm
Ditanya V Limas
V = ⅓ × L.alas × t
= ⅓ × 100 × 24
= ⅓ × 2400
= 800 cm³