Question

Hitunglah keliling danluas persegi panjang jika diketahui a panjang 1,5dm dan lebar 6cm​

Answer 1

P = 1,5 dm = 15cm

l = 6cm

Keliling = 2 (p+l)

K = 2 (15 + 6)

= 2 x 21

= 42

Luas = p x l

L = 15 x 6

= 90

Answer 2

Lebar 6 cm

panjang 1,5 dm = 15 cm

Keliling : 42 cm

2 × ( p + l ) = 2 × (15+6) = 2 × 21 = 42 cm

Luas : 90 cm²

p × l = 15 × 6 = 90 cm²