If the measure of three sides of a triangle is 18 cm, 24 cm, and 30 cm, then calculate the area of the triangle. Also, find the length of the altitude corresponding to the largest side of the triangle.
a) Area = 216 cm², Altitude = 24√3 cm
b) Area = 324 cm², Altitude = 18√3 cm
c) Area = 270 cm², Altitude = 15√3 cm
d) Area = 360 cm², Altitude = 20√3 cm