Jawaban:
A. L = p×l
= 18cm × 12cm
= 216 cm
B. L = ½ × a × t
= ½ × 6cm × 18cm
= 3cm × 18cm
= 54 cm
C. L = (a + b ) × t : 2
= ( 6 cm + 12cm ) × 18 : 2
= 18cm × 9cm
= 162 cm
D. K = AB + BC + CE + EA
= 18cm + 12cm + 18cm + 12cm
= 60 cm
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Jawaban:
A. L = p×l
= 18cm × 12cm
= 216 cm
B. L = ½ × a × t
= ½ × 6cm × 18cm
= 3cm × 18cm
= 54 cm
C. L = (a + b ) × t : 2
= ( 6 cm + 12cm ) × 18 : 2
= 18cm × 9cm
= 162 cm
D. K = AB + BC + CE + EA
= 18cm + 12cm + 18cm + 12cm
= 60 cm