Answer:
its the second one down
Step-by-step explanation:
The sign of the product would be the postitive sign because all three integers have the same sign.
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.).
Oh for sure, true true true! A good example would be a workout routine, find out what best works.