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 2 m above the ground. The distance of Anjali and the tree from the mirror are 1.4 m and 2.8 m respectively.
1. What are the two triangles formed in the above diagram, which are used to calculate the height of the tree?
a) ∆QMM' and ∆PQM
b)∆PQM and ∆RSM
c)∆RM'M and ∆MRS
d)∆PM'M and ∆RM'M
2. state the criterion of similarity,that will be used in the above triangles.
a)RHS
b)SSS
c)SAS
d)AA
3. What is the height of the tree?
a)4 m
b)5 m
c)6 m
d)7 m
4. what is the distance between Anjali and the tree?
a)1.4m
b)2.8m
c)5.2m
d)4.2m
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