Question

what is the perimeter?
5 ft
3 ft
4 ft
feet
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Explanation:

Step1: Recall perimeter formula for triangle

The perimeter of a triangle is the sum of its three side lengths. So, \( P = a + b + c \), where \( a \), \( b \), and \( c \) are the lengths of the sides.

Step2: Identify the side lengths

From the triangle, the side lengths are \( 3 \) ft, \( 4 \) ft, and \( 5 \) ft.

Step3: Calculate the perimeter

Substitute the values into the formula: \( P = 3 + 4 + 5 \).
First, add \( 3 \) and \( 4 \): \( 3 + 4 = 7 \).
Then, add the result to \( 5 \): \( 7 + 5 = 12 \).

Answer:

12