Jawab:
1. D
2. C
Penjelasan dengan langkah-langkah:
T = (2 × Luas) : a
T = (2 x 210) : 30
T = 420/30
T = 14 cm
Kll = a + b + c
Kll = 35 + 30 + 14
Kll = 79 cm (D)
2. L = a x t : 2
486 = a x 27 : 2
486 x 2 = 27a
972 = 27a
36 cm (c)
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Jawab:
1. D
2. C
Penjelasan dengan langkah-langkah:
T = (2 × Luas) : a
T = (2 x 210) : 30
T = 420/30
T = 14 cm
Kll = a + b + c
Kll = 35 + 30 + 14
Kll = 79 cm (D)
2. L = a x t : 2
486 = a x 27 : 2
486 x 2 = 27a
972 = 27a
36 cm (c)