Page 84 - E-modul BASAR

b) Luas Permukaan Kolam Renang

Luas I = (2 x L.T) + P.T + P.L

= (2 x (4 x 2)) + (20 x 2) + (20 x 4)

= (2 x (8)) + (40) + (80)

= 16 + 40 + 80

2
= 136 m

Luas II = (2 x luas alas) + (sisi miring alas x tinggi prisma)

= (2 x ( ( + ) x t)) + (sisi miring alas x tinggi prisma)
2

= (2 x ( (2 + 6) x 3)) + (5 x 20)
2

8
= (2 x ( x 3)) + (100))
2
= 24 + 100

2
= 124 m

Luas III = (2 x L.T) + P.L

= (2 x (8 x 6)) + (20 x 8)

= (2 x 48) + 160

= 96 + 160

2
= 256 m

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