For this, you will be using proportions. And in this case, the proportion will be 
Firstly, cross-multiply: 
Next, subtract 5x on each side: 
Lastly, subtract 24 on each side, and your answer will be 6 = x
To find BC, just add 4 and 6 together, which is 10. And to find AC, add 10 and 2 together, which is 12.
In short, the answer is the first option.
Perimeter is 2 x length + 2 x width
We can write that as...
P=2L+2W
We also know the length and perimeter so we substitute and solve like this
90=2 x 27 + 2W
90=54+2W
90-54=54-54+2W (property of subtraction equality)
36=2W
Divide by 2 (property of division equality)
W=18
Thus, the width of the rectangle is 18 cm
Y-9=2(x-5)
I think that’s right
Given:
Image of the pyramid
To identify:
The cross section of the solid.
Solution:
The given image is a pyramid.
The base of the pyramid have 5 edges.
So, it is a pentagonal pyramid.
In the cross section also have 5 edges.
Therefore the cross section of the solid shown in the diagram is pentagon.
