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Sagot :

Answer:

a

Step-by-step explanation:

can you help me with my question The surface of the Gilded Age was of great prosperity, while the interior was corrupt; the "gilding" or good exterior of the Gilded Age came from which of the following? A. Rebuilding the nation from the left over money from the War B. The technological advancements of the industrial revolution C. The mass movement of people from the country into the cities D. New monuments and buildings built in honor of the war heroes

Answer:

B

Step-by-step explanation:

Each sides is 90 degrees. So all you do is 90 divided by 20 and you got 4.5. Plus you can do 20 x 4.5 and you got 90 so its 20(4.5)