The tips of the shadows of a tree and of a metre stick meet at a point x. the following measurements are taken:
xs = 3.5m
es = 6.5m
use this information to find the height of the tree, to the nearest tenth of a metre.
attachment:

Ok, what you have there is two similar triangles (the sides have the same proportions in each). The bigger triangle is
(6.5+3.5)/3.5≈2.857
times bigger than the smaller one. So the height of the tree which is parallel to the metre stick is approx. 2.857 times bigger than the metre stick. So the height of the tree is 2.9 m (1 d.p).

3units/ 5 feet = 60 units/ 100 feet3 units/ 5 feet = 18 units/ 30 feetthe dimensions of the scale drawing are 60 units by 18 units.hope this !