Use the Pythagorean theorem to find the number that will replace the ? mark,
9cm
? cm
34 cm
You are looking for the square! No units
The square is cm?

Use the Pythagorean theorem to find the number that will replace the mark 9cm cm 34 cm You are looking for the square No units The square is cm class=

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Answer:

43

Step-by-step explanation:

The sides of the squares make up the sides of the triangle.

To find the measure of a side of the square, take the area given and square root it, since the area of a square is equal to the length of its side squared.

For the 9cm^2 area, the square root of 9 is 3, so each side is 3 cm.

For the 34 cm^2 area, the square root of 34 is about 5.83, so each side is about 5.83 cm.

Plug these into the Pythagorean theorem ([tex]a^2+b^2=c^2[/tex]) for a and b.

You get [tex]9+34=c^2[/tex].

Solve for c by square rooting both sides to get about 6.56.

Since it's asking for the area, square 6.56 to get 43.

An easier way to do this would be to recognize that [tex]a^2[/tex], [tex]b^2[/tex], and [tex]c^2[/tex] are all equal to the area of their respective squares, since the area of a square is equal to its side squared, and the Pythagorean theorem is also squaring the sides.

Using this information, a^2 is 9, b^2 is 34.

Once you add them up, you get c^2, and you know that c^2 is the area of the square the question is asking for.

Therefore, c^2 is equal to 9 + 34, or 43.