Keliling trapesium kan tinggal ditambah semua sisi2nya.
K = 68
Berarti :
AB + BC + CD + AD = 68
11x + 10x + 10 + 8x = 68
29x = 68-10
29x = 58
x = 2
Sisi2nya
AB = 11(2) = 22 cm
BC = 10(2) = 20 cm
CD = 10 cm
AD = 8(2) = 16 cm
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Keliling trapesium kan tinggal ditambah semua sisi2nya.
K = 68
Berarti :
AB + BC + CD + AD = 68
11x + 10x + 10 + 8x = 68
29x = 68-10
29x = 58
x = 2
Sisi2nya
AB = 11(2) = 22 cm
BC = 10(2) = 20 cm
CD = 10 cm
AD = 8(2) = 16 cm