Respuesta :
The elm is 21 m tall.
How to find the height is the elm to the nearest tenth?
Both the triangles are the same.
To find the height, by similarity we get
17 / h = 51 / 63
h = 63 * 17 / 51 = 21
The answer is 21 m.
If all the three sides of a triangle are in proportion to the three sides of another triangle, then the two triangles are similar. Thus, if AB/XY = BC/YZ = AC/XZ then ΔABC ~ΔXYZ.
Learn more about triangles here: https://brainly.com/question/1675117
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