42 inches squared
base times height divided by two
7x12 divided by two is 42
JK = MN because of Given
∠JLK = ∠MLN because of the vertical angle theorem
JL = LN because of definition of midpoint
ΔJLK = MLN because of SAS
∠K = ∠N because corresponding angles of congruent triangles are congruent.
Hope this helps!<span />
16, because all the other numbers are divisible by 3.
Or it could be 6 because it only has one digit while the others have 2
