Question 6 • FL-1205040-M/J Grade 7 Mathematics B -GF
Lukas wants to create a triangle with sides measuring 9 in., 13 in., and 15 in. He says that more than one triangle is possible given these side lengths. Which statement about Lukas’s claim is true?
Answer
A
Lukas is incorrect. The side lengths satisfy the triangle inequality rule so one unique triangle can be drawn.
B
Lukas is incorrect. The side lengths do not satisfy the triangle inequality rule so no triangles can be drawn given these side lengths.
C
Lukas is correct. The side lengths satisfy the triangle inequality rule so multiple triangles can be drawn.
D
Lukas is correct. The side lengths do not satisfy the triangle inequality rule so multiple triangles can be drawn.