Please help Find the missing part.

y = __ √_ ?

the first blank is a fraction with two numbers on top

Here we have two triangle rectangles, and we want to know the value of y, the shared cathetus between them.

First, we know that one of them has an angle of 60° and the adjacent cathetus to it is a.

The other has an angle of 30° and the adjacent cathetus is b.

In both cases, the opposite cathetus is y.

Now we can recall the relationship:

Tan(a) = (opposite cathetus)/(adjacent cathetus)

Then we can write:

tan(60°) = y/a

tan(30°) = y/b

And we also know that:

a + b = 15

Then we have 3 equations:

tan(60°) = y/a

tan(30°) = y/b

a + b = 15

To solve this, we first need to isolate one variable in one of the equations, i will isolate a in the third equation:

a = 15 - b

Now we can replace it in the first equation to get:

tan(60°) = y/(15 - b)

i will rewrite this one as:

tan(60°)*(15 - b) = y

then our system is:

tan(60°)*(15 - b) = y

tan(30°) = y/b

now we can isolate b in the second equation to get:

b = y/tan(30°)

and then replace it on the other equation to get:

tan(60°)*(15 - y/tan(30°)) = y

Now we can remember that:

tan(60°) = √3

tan(30°) = (√3)/3

Replacing these in our equation we get:

√3*(15 - y/((√3)/3)) = y

we can rewrite this as:

√3*(15 - y*3/√3) = y

then:

(√3)*15 - y*3 = y

(√3)*15 = y + y*3

(√3)*15 = 4*y

(√3)*15/4 = y

then we get:

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

step-by-step explanation:   divide the numerator by the denominator to get the decimal

it would still be 193

if divide by 100 then 1.93

i am not sure