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DedPeter [7]
3 years ago
8

Instructions: Find the missing side of the triangle. 25 20 х X =

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0

Answer:

x = 15

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

x² + 20² = 25²

x² + 400 = 625 ( subtract 400 from both sides )

x² = 225 ( take the square root of both sides )

x = \sqrt{225} = 15

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