Answer:
B. 314 cm³
Step-by-step explanation:
We are given that,
Height of the cone = 12 cm
Radius of the cone = 5 cm
<em>Since, we need to fill the cone with the cement. So, we will find the volume of the cone.</em>
So, Volume of the cone = 
i.e. Volume of the cone = 
i.e. Volume of the cone = 
i.e. Volume of the cone = 
i.e. Volume of the cone = 314 cm³
Hence, the amount of cement they can put in each cone is 314 cm³.
Answer:
B. 5/6
Answer explained:
Prime numbers include 2, 3, and 5 and all numbers after 3 are 4, 5, 6 so 5 out of 6 or 5/6
Answer:

Step-by-step explanation:
The formula of a surface area of a cylinder:

r - radius
H - height
We have r = 40mm and H = 50mm. Substitute:
