Do you mean 3.14 for pi or just 3?
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:
0.25 or 1/4
Step-by-step explanation:
Answer:
The similar triangle to ABC is DEF
Step-by-step explanation:
Answer:
d -39
Step-by-step explanation:
d/13-3
multiply both sides by 13
d 13(-3)
d -39
hope this helps