Is this a parallelogram? How do you know? Select the best answer.
A. Yes, the opposite sides are parallel and congruent
B. No, the opposite sides are parallel, but they are not congruent
C. No, the opposite sides are congruent, but they are not parallel
D. Yes, consecutive sides are congurent

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

ion

step-by-step explanation:

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the battle of gettysburg is considered the "high water mark" of the confederacy because it marked the greatest advance of the confederate forces against the union.