Mathematics

Question

Classify the triangle based on the side lengths 4.2, 6.4 and 7.6

acute
right
obtuse
no triangle can be formed with those sides. 

1 Answer

  • Right angle
    4.2 squared + 6.4 squared = 58.6
    Square root of 58.6 = 7.6 so you know the longest side is right
    And since you used Pythagoras theorem you know it must be a right angle
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