Hoover dam, is 223 meters high. errands dam, is 240 meters high. write and evaluate a numerical expression to find the difference between the heights of the two dams.

Step-by-step explanation:

In order to find the difference between two numbers, you must subtract the two numbers.

Subtracting helps you see how much bigger or smaller a number is.

223 and 240 subtracted is 17.

Therefore, the difference in heights is 17 meters.

This written in a numerical expression would be:

240 - 223 = x

x = 17.

1)is not similar since corresponding sides are not in the same ratio

2)are similar since corresponding sides are in the same ratio and corresponding angles are equal

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