Ms. Warren had each student take 3 pencils and create a triangle with them. Roberto has 3 pencils that measure 12 cm, 5 cm, and

Question

harkovskaia [24]

2 years ago

15

Ms. Warren had each student take 3 pencils and create a triangle with them. Roberto has 3 pencils that measure 12 cm, 5 cm, and

7 cm. How many triangles can Roberto create with his 3 pencils?
A.infinitely many
B.two
C.one
D.none

Mathematics

2 answers:

cestrela7 [59] · Answer 1 · 2022-06-29T10:29:33+03:00

cestrela7 [59]2 years ago

7 0

Answer:

One.

Step-by-step explanation:

The reason why is because 12-5 = 7, meaning that your lowest length has to be 7. meaning, that you can only do one triangle.

xz_007 [3.2K] · Answer 2 · 2022-06-29T11:36:57+03:00

xz_007 [3.2K]2 years ago

4 0

Answer:

D. None.

Step-by-step explanation:

<em>The Triangle Inequality Theorem states the longest side must be shorter than the sum of the other 2 sides. The longest side ( 12 ) >= ( 7 plus 5 ) = 12 is too large.</em>