You work for a company that builds custom wood furniture. The front of the roof of a doghouse you are designing is a triangle with side lengths of 4 feet, 2.1 feet, and 2.1 feet. What is the length of the triangular border on the front of the roof?
Answer
A
4.2 feet
B
6.1 feet
C
8.2 feet
D
8.4 feet
E
12.2 feet
Explanation
The triangular border is the perimeter, so add all three side lengths: 4 + 2.1 + 2.1 = 8.2 feet. The correct choice is 8.2 feet.
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