Respuesta :

If the length is 45 cm, then..
4:5 is our ratio.
Our new ratio would be 36:45.
The width is 36 cm. Hope it helps! :) If you could vote my answer as the brainiest, that would be awesome! :)
cahilll1

Answer: the answer would be 36:45

Step-by-step explanation: Hope this helps please bore brainlyiest est.