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tresset_1 [31]
4 years ago
9

Find x in this triangle

Mathematics
1 answer:
frutty [35]4 years ago
7 0

Answer:

x = 18

Step-by-step explanation:

x/81 = 4/x

cross-multiply:

x² = 81(4)

x² = 324

x = \sqrt{324} = 18

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