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A triangle has side lengths 10, 15, and 7. Is the triangle acute, obtuse, or right? Explain
 one year ago
 one year ago
OpenSessame Group Title
A triangle has side lengths 10, 15, and 7. Is the triangle acute, obtuse, or right? Explain
 one year ago
 one year ago

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OpenSessame Group TitleBest ResponseYou've already chosen the best response.0
MY ANSWER: Obtuse, because to find if the triangle is right, acute or obtuse you use the Pythagorean Theorem. You plug in the two smaller numbers in the equation to it looks like this, 7^2+10^2=12.2. Since the hypotenuse given in the problem is larger than the hypotenuse you get in the theorem it is obtuse. Is this right?
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
7, 10, 15 are the sides of triangle. if 7^2 + 10^2 < 15^2 be right, then it is an obtuse. YOU ARE RIGHT
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.0
Really? Okay then i am really confused...Because my teacher said repeatedly that i was wrong?
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
the answer already be right, but your reason not yet :) generally, if given 3 sides of a triangle a, b, and c with a < b < c. so, if a^2 + b^2 < c^2 then it is an obtuse triangle if a^2 + b^2 = c^2 then it is a right triangle if a^2 + b^2 > c^2 then it is a cute triangle
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.0
I see, but she said my work was corrrect but my conclusion wasnt...
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.0
I'm really starting to doubt teachers...
 one year ago

RadEn Group TitleBest ResponseYou've already chosen the best response.1
yes, because you said it is right triangle. that's the mistake, just check bellow : if given 3 sides of a triangle a, b, and c with a < b < c. so, (1) if a^2 + b^2 < c^2 then it is an obtuse triangle (2) if a^2 + b^2 = c^2 then it is a right triangle (3) if a^2 + b^2 > c^2 then it is a cute triangle
 one year ago

OpenSessame Group TitleBest ResponseYou've already chosen the best response.0
I said it was obtuse
 one year ago
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