Answer:15
Step-by-step explanation:
rectangle so we know two sides are equal and other two side are equal so we have X+X+X+4+X+4
so make it algerbra 4X+8=52
get rid of the 8 by subtracting from both side
4X+8-8=52-8
4X= 44
divide both sides by 4 to get rid of the 4
so X= 11
so two sides are 11
and two sides are 11+4 or 15
There are two triangles here: ABC and ADF. These triangles are similar, and thus proportional. So, we can set up a proportion between the left side of each triangle and the base of each triangle.
AB / AD = BC / DE
4 / (4 + BD) = 5 / 9
---AD is made up of AB and DB. We know AB, but not BD, so we need to find its value to find the length of AD.
5(4 + BD) = 9 x 4
20 + 5BD = 36
5BD = 16
BD = 3.2
AD = AB + BD
AD = 4 + 3.2
AD = 7.2
Hope this helps!
Answer:
Step-by-step explanation:
Ok i will try to answer but i really dont have that much of a clue right now
