Penjelasan dengan langkah-langkah:
a. kll segitiga = S + S + S
= 6cm + 8 cm + 9 cm
= 23 cm
b. kll persegi = 4 x S
= 4 x 12cm
= 48 cm
c. kll persegi panjang = 2 x (p + l)
= 2 x (7 cm + 3 cm)
= 2 x 10 cm = 20 cm
semoga bermanfaat
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Penjelasan dengan langkah-langkah:
a. kll segitiga = S + S + S
= 6cm + 8 cm + 9 cm
= 23 cm
b. kll persegi = 4 x S
= 4 x 12cm
= 48 cm
c. kll persegi panjang = 2 x (p + l)
= 2 x (7 cm + 3 cm)
= 2 x 10 cm = 20 cm
semoga bermanfaat
b.12×4=48
c.(7cm×2)+(3cm×2)=14+6=20cm