Question

Chang knows one side of a triangle is 13 cm. Which set of two sides is possible for the lengths of the other two

sides of this triangle?
O 5 cm and 8 cm
O 6 cm and 7 cm
O 7 cm and 2 cm
O 8 cm and 9 cm

Answer 1

D

Step-by-step explanation:

Answer 2

8 cm and 9 cm

Step-by-step explanation:

To estimate the sides of triangle we must understand that any side of a triangle is greater than the differences between any two sides and also less than the sum of the two sides.

In this problem;

One of the sides is 13cm;

According to our theorem, this sides is less than the sum of the other two sides and greater than difference between the two sides.

8 cm and 9 cm is the correct choice;

if the other two sides are 8cm and 9cm;

9cm - 8cm = 1cm

9cm + 8cm = 17cm

13cm is in between them.