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Anjali places a mirror on level ground t...

Anjali places a mirror on level ground to determine the height of a tree (see the diagram) . She stands at a certain distance so that she can see the top of the tree reflected from the mirror . Anjali's eye level is 1.8 m above the ground . The distance of Anjali and the tree from the mirror are 1.5 m and 2.5 m respectively.

(i) Name the two similar triangles that are formed in the diagram.
ii. State the criterion of similarity that is applicable here.
iii. Find the height of the trees.

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Ramesh places a mirror on level ground to determine the height of a pole (with traffic light fired on it). He stands at a certain distance so that he can see the top of the pole reflected from the mirror. Ramesh's eye level is 1.8 m above the ground. The distance of Ramesh and the pole from the mirror are 1.5 m and 2.5 m respectively. Which criterion of similarity is applicable to similar triangles?

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