AB = AF+FE+EB = 3+8+3 = 14
L = 1/2 (AB + DC) . DF
= 1/2 (14 + 8 ) . 4
= 2 (22)
= 44 cm²
K = AB+BC+CD+DA
= 14 + 5 + 8 + 5
= 32 cm
semangat sekolah ya...
:)
semoga membantu
" Life is not a problem to be solved but a reality to be experienced! "
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AB = AF+FE+EB = 3+8+3 = 14
L = 1/2 (AB + DC) . DF
= 1/2 (14 + 8 ) . 4
= 2 (22)
= 44 cm²
K = AB+BC+CD+DA
= 14 + 5 + 8 + 5
= 32 cm
semangat sekolah ya...
:)
semoga membantu