Hello, can you help me? “answered with an explanation” Thanks You. ​

Jawaban:

Dik:

tembok berbentuk persegi panjang, tingginya 200cm, keliling 1.040 cm

Dit:

luas tembok berapa cm²?

Jawab:

2× (t + l) = keliling

2× (200 + l) = 1.040

200 + l = 1.040 : 2

200 + l = 520

l = 520 – 200

l = 320

Cari luas tembok:

luas tembok = panjang (tinggi) × lebar

= 200 cm × 320 cm

= 64.000 cm²

luas tembok yang akan di cat adalah 64.000 cm²

B. 64.000 cm²

____________________________

● Lebar

= K/2 – p

= 1040/2 – 200

= 520 – 200

= 320 cm

● Luas

= p × l

= 200 × 320

= 64.000 cm²

____________________________