Question

Completed in 1863 , the dome is one of the most recent additions to the United States Capitol. It is supported by 36 iron ribs and has 108 windows, divided equally among three levels.
a. Excluding the spire of the dome, how many horizontal and vertical planes of symmetry does the dome appear to have?

Answer 1

18 lines of symmetry the dome have, after excluding the spire of the dome.

36 ÷ 2 = 18

3 row × 36 windows per row, total windows = 108. 36 of them connects a window with the window across to form 1 line of symmetry.

What is a symmetry?

If two additional identical parts that are arranged in an orderly fashion can be divided from a shape, it is said to be symmetrical. As an illustration, if you are instructed to cut out a "heart" from a piece of paper, you need just fold the paper, draw one-half of the heart at the fold, and then cut it out to discover that the second half exactly matches the first half.

Asymmetrical and symmetrical balances are the two types of balance. The two parts of the thing are precisely identical and balanced in symmetrical balance. The two parts of an asymmetrical balance are not similar; rather, separate things are arranged such that they appear to be balanced.

Learn more about symmetry

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