If a triangle has sides 3, 4, 5, it is a:
AEquilateral triangle
BIsosceles triangle
CRight-angled triangleCORRECT
DObtuse triangle
JUPEBMathematics
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Why the answer is C, and why the others tempt you.
3² + 4² = 9 + 16 = 25 = 5². Pythagoras confirms right-angled.
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