Hitunglah keliling dan luas trapesium berikut!!
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K = ( 8 + 8 + 5 + 5 + 4√3 ) cm
= ( 26 + 4√3 ) cm
L = 1/2 × ( 8 cm + 8 cm + 5 cm ) × 4 cm
= 1/2 × 21 cm × 4 cm
= 42 cm²
Bagian d.
K = ( 9 + 9 + 15 + 4 + 15 ) cm
= 52 cm
L = 1/2 × ( 9 cm + 9 cm + 4 cm ) × 12 cm
= 1/2 × 22 cm × 12 cm
= 132 cm²