A triangle has sides of 3.5 inches, 6 inches, and 5.5 inches. What is its perimeter?- ○ 18 inches²- ○ 15 inches- ○ 12 inches- ○ 15 inches²**Explanation:**The perimeter of a triangle is the sum of the lengths of its sides. For this triangle, add all side lengths together: 3.5 inches + 6 inches + 5.5 inches = 15 inchesTherefore, the correct answer is 15 inches. Note that answers given in square inches (inches²) indicate area, not perimeter, and are irrelevant in this context.

The sides of the triangles are: a=3.5 inchesb=6 inchesc=5.5 inchesNow the perimeter of the triangle is the sum of all sides of the given triangle. Therefore: Perimeter=a+b+cPerimeter=3.5+6+5.5Perimeter=15 inches

Answered: A triangle has sides of 3.5 inches, 6…

Elementary Geometry For College Students, 7e

7th Edition

ISBN:9781337614085

Author:Alexander, Daniel C.; Koeberlein, Geralyn M.

Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.

ChapterP: Preliminary Concepts

SectionP.CT: Test

Problem 1CT

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A triangle has sides of 3.5 inches, 6 inches and 5.5 inches. What is its perimeter? O 18 inches? O 15 inches O 12 inches 15 inches?