设AE交CD于E,易知ABCE是矩形,△AED是Rt三角形.
CD = 4根号6,ED = 3根号6
AD = (AE^2 + ED^2) ^ (1/2) = 6根号2
所以,周长 = AD+DC+BC+BA = 6根号2 + 4根号6 + 3根号2 + 根号6 = 5根号6 + 9根号2
面积 = AB*BC + 1/2 * AE*DE = 15根号3
设AE交CD于E,易知ABCE是矩形,△AED是Rt三角形.
CD = 4根号6,ED = 3根号6
AD = (AE^2 + ED^2) ^ (1/2) = 6根号2
所以,周长 = AD+DC+BC+BA = 6根号2 + 4根号6 + 3根号2 + 根号6 = 5根号6 + 9根号2
面积 = AB*BC + 1/2 * AE*DE = 15根号3