Area=lengthxwidth
9*6=54
Perimiter=l+w+l+w
6+9+6+9=30
Answer:
8meters
Step-by-step explanation:
Perimeter of the square ribbon = 4L
L is the side length of the table
Given
L = 2 meters
Substitute
Perimeter of the square ribbon = 4(2)
Perimeter of the square ribbon = 8meters
Hence she will need 8meters of ribbon to decorate the square
Answer:
![x = 8](https://tex.z-dn.net/?f=x%20%3D%208)
Step-by-step explanation:
Given
The attached triangle
Required
Determine the value of x
x represents the height of the triangle.
And the area of a triangle is calculated as:
![Area = \frac{1}{2} * Base * Height](https://tex.z-dn.net/?f=Area%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%2A%20Base%20%2A%20Height)
Where
![Base = 4](https://tex.z-dn.net/?f=Base%20%3D%204)
![Area = 16](https://tex.z-dn.net/?f=Area%20%3D%2016)
![Height = x](https://tex.z-dn.net/?f=Height%20%3D%20x)
The expression becomes
![16 = \frac{1}{2} * 4* x](https://tex.z-dn.net/?f=16%20%3D%20%5Cfrac%7B1%7D%7B2%7D%20%2A%204%2A%20x)
![16 = 2* x](https://tex.z-dn.net/?f=16%20%3D%202%2A%20x)
![16 = 2x](https://tex.z-dn.net/?f=16%20%3D%202x)
Divide through by 2
![8 = x](https://tex.z-dn.net/?f=8%20%3D%20x)
![x = 8](https://tex.z-dn.net/?f=x%20%3D%208)
Oh you have to make a list of things with a price make sure it adds up to that number