Someone please help me this is really confusing

Area of trapezoid is:

Area of triangle is:

Perimeter of triangle is:

Step-by-step explanation:

Image 1:

We need to Find area of trapezoid.

The formula used is:

where h is height and b₁ and b₂ are parallel sides.

Looking at the figure we get:

h = 2xy

b₁ = 4x²y

b₂ = 7x²y

Putting values and finding area:

So, Area of trapezoid is:

Image 2:

We need to find area and perimeter of triangle.

First we will find area of triangle.

The formula used is:

where b is base and h is height

Looking at the figure,

b = 3ab

h = 4a²b

Finding area:

So, Area of triangle is:

Now, finding Perimeter of triangle

The formula used is:

Looking at figure:

Length of side 1 = 3ab

Length of side 2 = 4a²b

Length of side 3 = 10a²b

Finding Perimeter

So, Perimeter of triangle is:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

think the answer would beb