Nomer 4 saya butuh bantuan

23/2 = p l = 27/4

keliling = 23/2 + 23/2 + 27/4 + 27/4
= 46/4 + 46/4 + 27/4 + 27/4 = 146/4 = 73/4 = 18 1/4

luas = 23/2 x 27/4 = 621/8

keliling =2 x (p+l) = 2 x ( 23/3 + 27/4 ) = 2 x ( 92/12 + 81/12 ) = 2 x (173/12) = 173/6
luas = 23/3 x 27/4 = 207/4

maybe?