Question

The two figures below are congruent. find the measure of the spot not labeled on both figures.

Answer 1

since the shapes are congruents, then, their sides and angles are also equal, check the picture below

now.... what are the angles of K and B? well... we dunno

but you have all other angles, notice, there are 4 sides, all internal angles add up to 360, so.. just A + B + C + D = 360 <--- solve for B

keep in mind K = B