Nils is 6 feet tall and he casts a 24 foot shadow. He sees the shadow of a tree next to him and measures it to find the shadow is 90 feet long. How tall is the tree?

360

Step-by-step explanation:

24 divided by 6 = 4 which means each foot = 4 foot shadow

90 x 4 =360

given that triangle abc is transformed two times to get triangle

a"b"c"

first abc is transformed in to a'b'c' as follows:

the coordinates of a are (1,-1) and transformed into a'(-1,1)

similarly b (4,-2) became b'(-4,2) and

c(7,-2) became c'(-7,2)

i.e. (x,y) becomes (-x,-y)

this is nothing but reflection about a point here origin.

thus first transformation is reflection on the origin.

next is exactly shifting 3 units down

source:

sorry, i can't understand your question. will later if you describe more clearly!

: )