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1. |
A tower is broken at a point P above the ground. The top of the tower makes an angle 60° with the ground at Q. From another point R on the opposite sideof Q angle of elevation of point P is 30°. If QR = 180 m, then what is the total height (in metres) of the tower?_x005F_x000D_ |
A. | 90 |
B. | 45√3 |
C. | 45(√3+1) |
D. | 45(√3+2) |
Answer» E. | |