Two poles standing on a horizontal ground are of heights 5 m and 10 m respectively. The line joining their tops makes and angle of 15° with the ground. Then the distance (in m) between the poles, is :
(1) 10 (√3 - 1)
(2) 5(2 + √3)
(3) 5(√3 + 1)
(4) 5/2 (2 + √3)
