10Answer:
10 + 10 =
Step-by-step explanation:
=20
Answer: ![52\ cm,\ 176.55\ cm^2](https://tex.z-dn.net/?f=52%5C%20cm%2C%5C%20176.55%5C%20cm%5E2)
Step-by-step explanation:
Given
The cylinder is 20 cm high
The radius of the cylinder is ![r=3\ cm](https://tex.z-dn.net/?f=r%3D3%5C%20cm)
The total area of the figure is the sum of the rectangle and two circles
![\Rightarrow \text{Perimeter P=}2[h+2r]\\\Rightarrow P=2[20+6]\\\Rightarrow P=52\ cm](https://tex.z-dn.net/?f=%5CRightarrow%20%5Ctext%7BPerimeter%20P%3D%7D2%5Bh%2B2r%5D%5C%5C%5CRightarrow%20P%3D2%5B20%2B6%5D%5C%5C%5CRightarrow%20P%3D52%5C%20cm)
The total area of the figure is
![\Rightarrow \text{Area A=}h\times 2r+2\pi r^2\\\Rightarrow A=20\times 6+2\times \pi \times 3^2\\\Rightarrow A=120+18\pi\\\Rightarrow A=176.55\ cm^2](https://tex.z-dn.net/?f=%5CRightarrow%20%5Ctext%7BArea%20A%3D%7Dh%5Ctimes%202r%2B2%5Cpi%20r%5E2%5C%5C%5CRightarrow%20A%3D20%5Ctimes%206%2B2%5Ctimes%20%5Cpi%20%5Ctimes%203%5E2%5C%5C%5CRightarrow%20A%3D120%2B18%5Cpi%5C%5C%5CRightarrow%20A%3D176.55%5C%20cm%5E2)
150 / 200 = 0.75
0.75 = 75%
150 of anything is 75% of 200 of the same thing.
Answer:
A
Step-by-step explanation: