Jawab:
keliling 80 cm
luas 120 cm²
Penjelasan dengan langkah-langkah:
1) DC =
=
= 20
DC = CB = BA = AD
Keliling = 4 x s
= 4 x 20
= 80 cm
2) luas = x d1 x d2
= x (6+6) x (10+10)
= 120 cm²
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Jawab:
keliling 80 cm
luas 120 cm²
Penjelasan dengan langkah-langkah:
1) DC =
=
=
= 20
DC = CB = BA = AD
Keliling = 4 x s
= 4 x 20
= 80 cm
2) luas =
x d1 x d2
=
x (6+6) x (10+10)
= 120 cm²