The feet of two vertical poles of heights 3metres and 7metres are in line with a point P on the ground, the smaller pole being between the taller pole and P at a distance 20metres from P. The angle of elevation of the top (T) of the taller pole from the top (R) of the smaller pole is 30◦. Calculate the: (i) distance RT (ii) distance of the foot of the taller pole from P, correct to 3s.fs. (iii) angle of elevation of T from P, correct to 1d.p.
AAAaannndd the bot gets it wrong yet again!
RT=4√3
so the rest are also wrong
(i) Distance RT = 4.3 metres
(ii) Distance of the foot of the taller pole from P = 23 metres
(iii) Angle of elevation of T from P = 60°