Triangles FGH and WXY are similar. F
8 cm
W
H
G
X
12 cm
Y
6 cm
*not drawn to scale
How long is YW?
A. 8 cm
B. 6 cm
c. 4 cm
D. 2 cm

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.

Plz ( true - false) all triangles have interior angles whose measure sum to 90.