AM I RIGHT:
SA:2*(3.14)R*R + 2*(3.14)*R*H
R-4 & H-10
2*3.14*4*4= 100.48
2*3.14*4*10=251.2
SA- 25240.576
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V-3.14*R*R*H
V-3.14*4*4*10
V-502.4
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V-L*W*H
V-5*9*7
V- 315
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It seems like you're calculating the surface area (SA) and volume (V) of different shapes. Let me verify the calculations for you and explain the process.
For the surface area of a cylinder, the formula is SA = 2πr^2 + 2πrh, where r is the radius and h is the height.
Given that r = 4 and h = 10, you correctly calculated:
2(3.14)(4^2) + 2(3.14)(4)(10) = 100.48 + 251.2 = 351.68
However, there is a mistake in stating SA as 25240.576. The correct value is 351.68.
Now let's move on to the volume of a cylinder. The formula for volume (V) is V = πr^2h.
Given that r = 4 and h = 10, you correctly calculated:
3.14(4^2)(10) = 3.14(16)(10) = 502.4
The value you stated, V = 502.4, is correct.
Lastly, you mentioned calculating the volume of a rectangular prism with length (L), width (W), and height (H). The formula for volume is V = LWH.
Given that L = 5, W = 9, and H = 7, you correctly calculated:
5(9)(7) = 315
Therefore, the value you stated, V = 315, is correct.
In summary:
- The surface area (SA) of the cylinder with r = 4 and h = 10 is 351.68.
- The volume (V) of the cylinder with r = 4 and h = 10 is 502.4.
- The volume (V) of the rectangular prism with L = 5, W = 9, and H = 7 is 315.