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Find x in this triangle
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17 votes
Find x in this triangle

Find x in this triangle-example-1
User StaticBeagle
by
7.5k points

1 Answer

8 votes

Answer:

x = 18

Explanation:

x/81 = 4/x

cross-multiply:

x² = 81(4)

x² = 324

x =
√(324) = 18

User Birdcage
by
7.7k points
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