Juanita, who is 1.82 meters tall, wants to find the height of a tree in her backyard. From the tree's base, she walks
12.20 meters along the tree's shadow to a position where
the end of her shadow exactly overlaps the end of the tree's
shadow. She is now 6.10 meters from the end of the shadows.
How tall is the tree?

29.5977692753

step-by-step explanation:

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x