(1)∵平行四边形ABCD,
∴AB ∥ CD,AB=CD,
∵AE:EB=2:3,
∴AE:CD=2:5,
∵∠CAB=∠ACD,∠AED=∠EDC,
∴△AEF ∽ △CDF,
∴△AEF和△CDF的周长比为2:5.
(2)∵△AEF ∽ △CDF,
∴S CDF :S AEF =25:4,
∵△AEF的面积为8cm 2 ,
∴△CDF的面积为50cm 2 .
(1)∵平行四边形ABCD,
∴AB ∥ CD,AB=CD,
∵AE:EB=2:3,
∴AE:CD=2:5,
∵∠CAB=∠ACD,∠AED=∠EDC,
∴△AEF ∽ △CDF,
∴△AEF和△CDF的周长比为2:5.
(2)∵△AEF ∽ △CDF,
∴S CDF :S AEF =25:4,
∵△AEF的面积为8cm 2 ,
∴△CDF的面积为50cm 2 .