Jawaban:
1.) a. 46 cm
b. 126 cm
2.) 16 cm
Penjelasan dengan langkah-langkah:
1.) a. K = 2 x (p + l)
= 2 x (14 cm + 9 cm)
= 2 x 23 cm
= 46 cm
b. L = p x l
= 14 cm x 9 cm
= 126 cm
2.) l = (K : 2) - p
= (72 cm : 2) - 20 cm
= 36 cm - 20 cm
= 16 cm
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Jawaban:
1.) a. 46 cm
b. 126 cm
2.) 16 cm
Penjelasan dengan langkah-langkah:
1.) a. K = 2 x (p + l)
= 2 x (14 cm + 9 cm)
= 2 x 23 cm
= 46 cm
b. L = p x l
= 14 cm x 9 cm
= 126 cm
2.) l = (K : 2) - p
= (72 cm : 2) - 20 cm
= 36 cm - 20 cm
= 16 cm