Triangle Inequality 5-5-9 » MCQ Academy - English

Geometry

Can side lengths 5 cm, 5 cm, and 9 cm form a triangle?

Yes, only if all sides are equal.
Yes, because any three numbers form a triangle.
No, because a triangle must have four sides.
Yes, they can form a triangle.

Yes, only if all sides are equal.
Yes, because any three numbers form a triangle.
No, because a triangle must have four sides.
Yes, they can form a triangle.

Note

Use the triangle inequality rule: the two shorter sides must add to more than the longest side. Here, 5 + 5 > 9, so a triangle is possible.

Tags: Triangle Inequality, Triangles

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