Jawaban:
110 cm² (Opsi A)
Penjelasan:
a = 7 cm
b = 15 cm
t = 10 cm
s = 18 cm
L = 1/2•(a + b)•t
= 1/2•(7 + 15)•10 cm
= 1/2•22•10 cm
= 1/2•220 cm
= 110 cm²
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Jawaban:
110 cm² (Opsi A)
Penjelasan:
a = 7 cm
b = 15 cm
t = 10 cm
s = 18 cm
L = 1/2•(a + b)•t
= 1/2•(7 + 15)•10 cm
= 1/2•22•10 cm
= 1/2•220 cm
= 110 cm²