558,739 is the correct answer.
1 is not a function. 2 is not. 3 is not. 4 and 5 are functions. 6 is not.
Area of a triangle can be calculated as:
Area = 0.5 x Base x Height
Area is given to be 52 in²
Height is 13 inches.
We are to find the base b of the triangular shaped guitar.
Using the values in above formula, we get:
Thus the base of triangular shaped guitar will be 8 inches.