How can the name of a prism or a pyramid help you visualize the cross sections of the solid?
2 answers:
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Answer:
11.4
Step-by-step explanation:
So we know that Triangle ACB is similar to Triangle EFD.
This means that their sides are proportional to each other.
We want to find x or side AB. To do so, we can set up a proportion.
The proportional side to AB is ED. Let's also use BC since we know its value. The proportional side to BC is DF. Thus:
Substitute x for AB, 3.8 for Ed, 15 for BC, and 5 for DF. Thus:
Reduce the right:
Cross multiply:
So, the value of x is 11.4
And we're done!
Answer:
- y = -5
- x = - 2
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The horizontal line has same y- coordinate for each x- coordinate, and is parallel to the x-axis so it is:
- y = - 5
The vertical line has same x- coordinate for each y- coordinate, and is parallel to the y-axis so it is:
- x = - 2
<em>Refer to graphs.</em>
