Answer:
the lengths are the same with the given, 5 cm for the bottom one,and 4 cm for the right one.
then since the first give angle is 56 which is the same to the right below. 56+56=112
360-112=248 (it is 360 because the shape is a quadrilateral
and then, since the other angles left are congruent the you divide the 248 to 2, and the answer will be 124
so, 56+56+124+124=360
(I'm sorry for the explanation, I'm not really good at explaining hehe)
