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algol13
3 years ago
8

Find the indicated side of the right triangle.

Mathematics
1 answer:
Advocard [28]3 years ago
8 0

Answer:

?=9

Step-by-step explanation:

We have a special right triangle, the 45-45-90 triangle.

In a 45-45-90 triangle, the side lengths are x, and the hypotenuse is x√2.

Since we know that the side length is 9, this means that:

x=9\\\text{Hypotenuse}=x\sqrt2\\\text{Hypotenuse}=9\sqrt2

The ? is 9.

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meaning:

x=(-1+√21)/2 or x=(-1-√21)/2

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