What the highest common factor for 12 and 20

Find the value of the variable and the length of each secant segment.

Can someone pls ! pls answer all. no explanation needed..

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.