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

You might be interested in

Three locations are marked next to a river. Points B and C are on the same side of the river, and point A is on the other side o

nlexa [21]

Answer:

74.31353

=74 m

Step-by-step explanation:

given that three locations are marked next to a river. Points B and C are on the same side of the river, and point A is on the other side of the river. To find the distance AB across a river, a distance BC of 241 meters is laid off on one side of the river. It is found that the angle at point B is 108.6° and the angle at point C is 14.9°.

we have information about triangle ABC as side BC =241, Angle B = 108.6 and angle C = 14.9 degrees.

Hence this is an obtuse scalene triangle.

Angle ∠A = 56.5° (III angle)

Using sine formula we get

$\frac{AB}{sin 14.6} =\frac{BC}{sin 56.5} \\AB = 74.31353$