Luas Segitiga:1/2 x a x t
:1/2 x 7 cm x 8 cm
:56/2=28 cm persegi
Keliling=3 x sisi
=3cm x 7 cm=21 cm persegi
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Luas Segitiga:1/2 x a x t
:1/2 x 7 cm x 8 cm
:56/2=28 cm persegi
Keliling=3 x sisi
=3cm x 7 cm=21 cm persegi