Question

1. Panjang sebuah persegi panjang bertambah 20% dan lebarnya bertambah 30% berapa persen pembesaran luas persegi panjang tersebut?

2. The area of a rectangle is 120% that of the area of square. What is thearea rectangle if each side of square is 4 cm long?

Answer 1

1.)L=P×L
L=20%×30%
L=20/100×30/100
L=2/10×3/10
L=1/5×3/10
L=3/50
kalau dijadikan persen=
3/50=3/50×2/2=6/100=6%

2.)120%×4cm=
120/100×4cm=
12/10×4cm=
1/10 cm.