Work out the size of angle X

109

Step-by-step explanation:

Add 29 plus 42 to get the amount of space already being taken up to get 71 as the amount of space being taken up then subtract 180 because the space in total including x is 180 degrees so you subtract 180-71 to get 109

there is no image or shapes attacted

step-by-step explanation:

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.