Answer:
Side 3 = 14.8-(2.94+7.3) cm.
Explanation:
Since perimeter of any polygon is the sum of its sides.
Therefore perimeter of a triangle is the sum of length of all sides of the triangle.
Or we can represent this as perimeter of a triangle = side 1 + side 2 + side 3
Here perimeter of the triangle = 14.8 cm.
side 1 = 7.3 cm
side 2 = 2.94 cm
Therefore by putting these values in the formula
14.8 = 7.3 + 2.94 + side 3
Side 3 = 14.8 - (7.3 + 2.94)