from a point a on the ground the angle of elevation of the top of a tower is found to be 45 if the distance between point a and the base of the tower is the height of the tower is why then does full true
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Step-by-step explanation:
What locomotory orgen in Amoeba?
Q.18 Given Gymnosperm plant example?
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Answer:
In ΔADC
tan30
o
=
AC
DC
3
1
=
d
h
........(1)
d=
3
h
→d=
3
×10
3
=30m
In ΔBCD
tan60
o
=
BC
DC
3
=
d−20
h
.......(2)
on solving equation (1) & (2)
3
=
3
h−20
h
⇒3h−20
3
=h
2h=20
3
h=10
3
m
height of tower.
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