Which statements about the diagram are true? Select three options.





Which are the possible side lengths of a triangle?
If triangle DEF has a 90° angle at vertex E, which statements are true? Select two options.
Fiona's school is in the shape of a triangle, with three hallways connecting the corners. Fiona enters the building and walks 90 yards through the first hallway to the first corner. Then, she walks 60 yards through the second hallway to the second corner.

The isosceles triangle has a base that measures 14 units.

must
Iliana claims that she can construct a triangle from a 12-inch rod, a 36-inch rod, and a 39.4-inch rod. Which statement explains whether she is correct?
In triangle XYZ, m∠Z > m∠X + m∠Y. Which must be true about △XYZ?
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