I've been stuck on this for a while now, so any help would be much appreciated. Thanks!

A parallelogram is a quadrilateral that has both pairs of opposite sides parallel. A diagonal of a parallelogram separates it into two congruent triangles.

∠LMK = ∠JKL

∠JMK = ∠LKM

JK || ML    Given

MJ || KL    Given

MJKL is a parallelogram Definition of parallelogram

JK = ML, MJ = KL  Opposite sides of a parallelogram congruent

MK = KM Reflexive property

ΔMJK = ΔKLM SSS

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

idk

step-by-step explanation:

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