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I have homework pls help

I have homework pls help-example-1
User ClaraU
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Answer:

Triangle B

Explanation:

It is possible to determine if a triangle contains a right angle using Pythagoras' theorem . If the squares of the two shorter sides add up to the square of the hypotenuse, the triangle contains a right angle.

so when we look at triangle B if we squared and then added the two shorter sides 3/7 and 4/7 we get 25/49 which is the square of the longer side 5/7

so according to the Pythagoras theorem it's a right angle triangle

User Fcat
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