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The criteria for similarity is that the angles are congruent and the side lengths are proportional.
Yes, the corresponding angles are congruent and the corresponding side lengths are proportional.
If figures are similar, they must have two things in common.
Let's consider the given figures.
Both of the given figures are rectangles. Therefore, they both have four right angles. Because all of the angles are the same, we know that they are congruent.
Now we need to check if the side lengths are proportional. We need the ratio of the lengths to be equal to the ratio of the widths.
Length of B= 5, Length of A= 10
a/b=.a /5./.b /5.
Because corresponding angles are congruent and the ratios between the measurements of corresponding sides are the same, the rectangles are similar.