1) Lub tiaj tiaj: Nws txhais tau tias cov khoom lag luam tso tawm rau saum npoo ntawm daim ntawv pawg taub hau yog tiaj.
2) Trapezoid: hais txog daim ntawv taub hau loj thiab me
3) Cov duab tshwj xeeb: Feem ntau, daim ntawv lub taub hau yog plaub fab, tab sis raws li cov yam ntxwv ntawm cov khoom lag luam thiab qhov xav tau tiag tiag, cov ntawv sib txawv ntawm lub taub hau tuaj yeem tsim tau, xws li zaj lub nkoj zoo li dumpling ntawv pawg taub hau, cov cylindrical cola ntawv lub taub hau, thiab qhov siab tawg tawg pawg ntawm cov ntawv zoo nkauj zoo nkauj.
