Answer:
b
Step-by-step explanation:
Answer: Vertical Line
Step-by-step explanation: The line x = -5 is a vertical line at -5. All of the coordinates on the line have an x value of value, which results in a vertical line.
The area of the base = 15 * 15 = 225 m2
ande tharea of each sloping triangular side = 1/2 * 15 * 18 = 135 m2
so total surface area = 225 + 4*135 = 765m2
