Respuesta :

mathstudent55

Answer:

d.10cm,5cm,9cm

Step-by-step explanation:

In a triangle, the length of each side must be between the difference and the sum of the lengths of the other sides.

a. 1 + 1 = 2; 2 < 3     Answer: no

b. 2 + 3 = 5; 5 = 5     Answer: no

c. 10 - 3 = 7; 7 > 4      Answer: no

d. 10 + 5 > 9

5 + 9 > 10

10 + 9 > 5

10 - 5 < 9

10 - 9 < 5

9 - 5 <10

Answer: yes

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