Answer:

Step-by-step explanation:
The formula of a volume of a cone:

r - radius
H - height
We have r = 10cm and H = 16cm. Substitute:

0.7 + 0.4 + 0.6 + 0.4 = 2.1 is the perimeter
0.7 x 0.4 = 0.28
0.6 x 0.4 = 0.24
0.28 + 0.24 = 0.52 is the area
Hope that helped!