Question

Pake cara ya thanks

Answer 1

Keliking persegi panjang :
= 2 × ( 12cm +15cm )
= 2 × 27cm
= 54 cm

luas persegi panjang
= 12 cm × 15 cm
= 180 cm

ditanya perbandingan keliling dan luas
= 54 : 180
= 54 : 180
= 9 : 30
= 3 : 10 ( C )