Answer:
188.5 cm^2
Step-by-step explanation:
a) Your volume is correct.
b) The curved surface area of the cone is called the lateral area.
Its formula is:
LA = (pi)rs,
where pi is 3.14159...
r = radius of the base
s = slant height of the cone
Here, r = 6 cm, and s = 10 cm
LA = (3.14159)(6 cm)(10 cm)
LA = 188.5 cm^2
116875 = (x / 100) * 125000
116875 = x * 125000 / 100
116875 = 1250x (The zeros get cancelled)
Therefore, x = 116875/1250 = 187/2 = 93.5%
