Answer:
S.A. = 138.16
Step-by-step explanation:
S.A. = πrl+πr²
3.14 x 4 = 12.56
12.56 x 7 =87.92
3.14 x 4 = 12.56
12.56 x 4 = 50.24
87.92 + 50.24 = 138.16
Let me know if this helps!
<span>A board is 5 inches long. The division sentence shows that when the board is cut into inch pieces, each piece will be will be inches long.
</span>hopes this helps :) :D :)
More info please :):):):):):):)
I Used A Calculator To Get The Answer....So Hopefully It's Right
Answer:
![Area = 6](https://tex.z-dn.net/?f=Area%20%3D%206)
Step-by-step explanation:
Given
![(x_1,y_1) = (7,7)](https://tex.z-dn.net/?f=%28x_1%2Cy_1%29%20%3D%20%287%2C7%29)
![(x_2,y_2) = (10,3)](https://tex.z-dn.net/?f=%28x_2%2Cy_2%29%20%3D%20%2810%2C3%29)
![(x_3,y_3) = (7,3)](https://tex.z-dn.net/?f=%28x_3%2Cy_3%29%20%3D%20%287%2C3%29)
Required
The area
This is calculated as:
![Area = \frac{1}{2}|x_1y_2 - x_2y_1 + x_2y_3 - x_3y_2 +x_3y_1 - x_1y_3|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7Cx_1y_2%20-%20x_2y_1%20%2B%20x_2y_3%20-%20x_3y_2%20%2Bx_3y_1%20-%20x_1y_3%7C)
So, we have:
![Area = \frac{1}{2}|7*3 - 10*7 + 10*3 - 7*3 +7*7 - 7*3|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7C7%2A3%20-%2010%2A7%20%2B%2010%2A3%20-%207%2A3%20%2B7%2A7%20-%207%2A3%7C)
Using a calculator, we have:
![Area = \frac{1}{2}|-12|](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%7C-12%7C)
Remove bracket
![Area = \frac{1}{2}*12](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%2A12)
![Area = 6](https://tex.z-dn.net/?f=Area%20%3D%206)