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ZanzabumX [31]
3 years ago
10

Can someone plz show me how to do this. Thx

Mathematics
2 answers:
-Dominant- [34]3 years ago
4 0
Are you familiar with how to find the area of a rectangle?
A= base*height -- for rectangles

how about the area for a trapezoid?
well what happens when we cut the triangular section from one side and then fit it onto the other side, do we get a rectangle?

so finding the area of a trapezoid is essentially the same as finding the area of a rectangle.
In your case, t is the height,18 mi is your base and the area given is 216mi^2

"plug" those all into the rectangular area equation, divide the base from both sides, and you should be able to determine height
NISA [10]3 years ago
3 0
So to find area you have to use this rule : area= base•height and if you have area and one side you will have to divide to find another side: 216 : 18 =12


12 mi is missing length
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