Tolong dijawab ya jangan asal​

Jawaban:

1. S= 1cm

K= 4 × s

= 4 × 1 = 4 K= 4cm

L= s × s

= 1 × 1 = 1 L= 1cm²

2.p=20cm

l = 15cm

K= 2 × (p+l)

= 2 × (20 + 15)

= 2 × 35 = 70 K= 70cm

L= p × l

= 20 × 15 = 300 L= 300cm²

Dont forget to give me Best Answer~

Penjelasan dengan langkah-langkah:

diketahui :

p= 20 cm

l = 15 cm

2. Luas persegi panjang : p×l

= 20 × 15

=300 cm

keliling persegi panjang : 2× ( p+l )

= 2× ( 20+15 )

=2× 35

=70 cm