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01-07-2021
Mathematics

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find missing side of triangle, help!

find missing side of triangle help class=

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Аноним Аноним

01-07-2021

Answer:

2√10 km

Step-by-step explanation:

By Pythagoras theorem,

x^2 + 9^2 = 11^2

x^2 + 81 = 121

x^2 = 121 - 81

x^2 = 40

= 4 x 10

x^2 = 2^2 x 10

x = 2√10 km

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