Test of Essential Academic Skills (TEAS) ATI Mathematics Practice Test 2026 – Comprehensive All-in-One Guide for Exam Success

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What is the perimeter of a triangle with sides measuring 5 cm, 12 cm, and 13 cm?

30 cm

To find the perimeter of a triangle, you simply add the lengths of all its sides together. In this case, the lengths of the sides of the triangle are 5 cm, 12 cm, and 13 cm.

Calculating the perimeter involves the following steps:

1. Add the first side (5 cm) to the second side (12 cm):

5 cm + 12 cm = 17 cm.

2. Then, add the result to the third side (13 cm):

17 cm + 13 cm = 30 cm.

Therefore, the perimeter of the triangle is 30 cm. This is consistent with the information provided and confirms that 30 cm is indeed the correct answer.

28 cm

25 cm

22 cm