A statue 1.6 m tall stand on the top of pedestal from a point on the ground the angle of elevation of the top of the satue is 60 and from the same point the angle of elevation of the pedestal is 45 find the height of the pedestal use 3= 1.75
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Answer:
The angle of elevation from the eyes of observer increases from 30° to 60° to the top of the building. Fig. 9.8. i.e., ∠ECD = 30° and ∠EFD = 60°.
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Answer:
ANSWER
In ΔBCD
tan30
o
=
CD
BC
3
1
=
CD
h
CD=
3
hm ........(1)
Now,
In ΔACD
tan60
o
=
CD
AC
=
CD
AB+BC
From equation (1) substitution value of CD
tan60
o
=
3
h
1.6+h
⇒h
3
×
3
=1.6+h
⇒3h−h=1.6
2h=1.6
h=0.8m
Height of Pedestal.
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