You can find it by adding up the angles of the parallelogram.
Answer:
52 feet
Step-by-step explanation:
This situation can be represented by the attached figure as in the answer area.
Let M be the location of Mary.
Let S be the location of Sue.
Distance between apartments is given as 20 feet.
Distance between ground and balcony of Mary is 40 feet.
There is a right angled
.

To find:
The distance SO + 40 feet.
We can use tangent ratio here in right angled
.


Height of Sue above ground = 40+12 = <em>52 feet</em>
So here is the equation for the total amount of kids:
(16x+30)+ [(16x+30)+(5x-12)]
Boys Girls
This is simplified to 37x+48 in terms of x using PEMDAS.
The angles are supplementary, for 98+82=180
Perimeter is 30
Area is also 30.
Add the numbers to get the perimeter and then use 1/2bh to get the area. <span />