Its 23, you do the times first then add.
3x5=15
15+8=23
<h3><u>Given Information :</u></h3>
- Radius of the turbine = 32 m
- π = 3
<h3 /><h3><u>To calculate :</u></h3>
- Area covered by blade when the turbine makes 1 revolution.
<h3><u>Calculation :</u></h3>
We know that,
![\bigstar \: \boxed{\sf {Area_{(Circle)} = \pi r^2}} \\](https://tex.z-dn.net/?f=%5Cbigstar%20%5C%3A%20%5Cboxed%7B%5Csf%20%7BArea_%7B%28Circle%29%7D%20%3D%20%5Cpi%20r%5E2%7D%7D%20%5C%5C%20)
![\sf \longmapsto {Area = \{3 \times (32)^2 \} \: m^2 }](https://tex.z-dn.net/?f=%20%5Csf%20%5Clongmapsto%20%7BArea%20%3D%20%5C%7B3%20%5Ctimes%20%2832%29%5E2%20%5C%7D%20%5C%3A%20m%5E2%20%7D%20)
![\sf \longmapsto {Area = \{3 \times 1024 \} \: m^2 }](https://tex.z-dn.net/?f=%20%5Csf%20%5Clongmapsto%20%7BArea%20%3D%20%5C%7B3%20%5Ctimes%201024%20%5C%7D%20%5C%3A%20m%5E2%20%7D%20)
![\longmapsto \sf \red {Area = 3072 \: m^2 }](https://tex.z-dn.net/?f=%20%5Clongmapsto%20%5Csf%20%5Cred%20%20%7BArea%20%3D%203072%20%5C%3A%20m%5E2%20%7D%20)
Therefore,
- Correct option is <u>option 4th.</u>
The answer is A 16 degrees you just have to compare it to the other numbers and it is the smallest
1.25 × 96 = 120
OR
.25 × 96 = 24
24 + 96 =120
either way, same answer