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19-01-2021
Mathematics

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Calculate the length of the third side

Calculate the length of the third side class=

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yazewers yazewers

19-01-2021

Answer:

length of side = 9

Step-by-step explanation:

This is a right angle triangle so we can use Pythagoras theorem. a^2 + b^2 = c^2

a^2 + 12^2 = 15^2

a^2 = (15^2) - (12^2)

a^2 = 225 - 144

a^2 = 81

a = square root of 81

a = 9

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