Answer:
Step-by-step explanation:
- For solid iron sphere:
- radius (r) = 2 cm (Given)
- Formula for is given as:
- For cone:
- r : h = 3 : 4 (Given)
- Let r = 3x & h = 4x
- Formula for is given as:
- It is given that: iron sphere is melted and recasted in a solid right circular cone of same volume
- Assuming log on both sides, we find:
- Taking antilog on both sides, we find:
16/72 = x/100
72x = 1600
/72 /72
<span>
x = 22.222.....
Answer: Choice A</span>
Answer:
187.5 m^3
Step-by-step explanation:
2 to 5 is 2(2.5)
2.5^2 = 6.25
6.25(30) = 187.5
Answer:
9 x 8 = 72
This equation shows that 9 is a factor of 72 because 9 times something is 72 in this equation. Hope it helps!
You can use trigonometry specially the cos rule in this case. I can’t send the other pictures. But using the cos rule you can check whether the angle is 90