Answer: Only one unique triangle Khaleem could draw that fit these dimensions.
Explanation:
Let ABC be a triangle with side-lengths 5 cm, 8 cm, and 7 cm.
Suppose there is another triangle with same side lengths.
Then by SSS congruence criteria both triangles are congruent or exactly equal.
Therefore, if Khaleem wanted to draw a triangle where the sides measured 5 cm, 8 cm, and 7 cm, then only one unique triangle Khaleem could draw that fit these dimensions.