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A triangle is formed by three lines. If the ends of two lines meet to form a right-angle (90 degrees), the third line can only form angles less than 90 degrees.

90 + 45 + 45 = 180 the three angles must total 180 degrees.

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12y ago

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B Maombi

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3y ago
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Q: What is the greatest number of right angles that a triangle can contain?
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