Question

plz plz help me

I Will make as brain list​

Answer 1

Step-by-step explanation:

let the length be X

ATQ,

40=x×3

X=40÷3

13.333

Hence the length is 13.333cm.

perimeter=2(l+b)

=2(13.333+3)

=2×16.333

=32.666

please mark me as brainliest