Is the triangle in the drawing a right triangle?
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Is the triangle in the drawing a right triangle?
It can be seen that all angles in the given triangle are less than 90 degrees.
In a right-angled triangle, there needs to be one angle that equals 90 degrees
Since this condition is not met, the triangle is not a right-angled triangle.
No
Is the triangle in the drawing a right triangle?
Look for a perfect square corner where two sides meet at exactly perpendicular angles. If all angles appear acute (less than 90°), it's not a right triangle.
Close doesn't count! A right triangle must have exactly one 90-degree angle. If it's close but not exact, it's classified as an obtuse or acute triangle instead.
No! The sum of angles in any triangle is always . If you had two 90° angles, that's already 180°, leaving 0° for the third angle, which is impossible.
Triangle classification determines which formulas and properties you can use! Right triangles allow Pythagorean theorem, special trigonometric relationships, and specific area calculations.
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