Two poles of height a meters and b meters stand at the centres of two circular plots which touch each other externally
at a point and the two poles subtend angles of 30° and 60° respectively at this point, then the distance (in meters)
between the centres of these plots is
A А
a + b
(3a+b)
B
V3
(2+36)
V3
D a3 + b
Answers
Answered by
2
In △ABC,tan30°=
BC
a
BC=
3
a→1
In △ECD,tan60°=
CD
b
CD=
3
b
→2
BC+CD=a
3
+
3
b
=
3
3a+b
Distance between poles=
3
3a+b
solution
Similar questions