Answer: The answer is 314.28 cm² (approx.).
Step-by-step explanation: Given that an engineer is going to install a new water pipe. The diameter of this circular pipe is, d = 20 cm.
We need to find the area 'A' of the circular cross-section of the pipe.
Given, diameter of the circular section is

So, the radius of the circular cross-section will be

Therefore, cross-sectional area of the pipe is

Thus, the answer is 314.28 cm² (approx.).
Answer:
The GFC of 5 and 6 is 2.
Step-by-step explanation:
Hope this helps :))
Answer:
15/16
Step-by-step explanation:
3 3/4 divided by 4 = 15/16
Answer:
9 cm
Step-by-step explanation:



9 cm = x