2. Which angle in the figure below measures 90 degrees? Explain why. (3 points) Please help I don’t understand

<BKC

Step-by-step explanation:

m<DKC = 20°

m<BKD = 70°

m<BKC = m<DKC + m<BKD (angle addition postulate)

m<BKC = 20° + 70° (Substitution)

m<BKC = 90°.

Therefore, the angle that equals 90° in the given figure is angle BKC.

18

step-by-step explanation:

draw the shape and you will see that f and k are actually at adjacent vertices (points of the hexagon that are neighboring).   so find the distance between (1,2) and (4,2).   that is easy since (1,2) and (4,2) is just a vertical distance to count, which is 3.   it is a regular polygon which means all sides are congruent.   you have 6 sides (hexa) so multiply 6 by 3 to receive 18.