Kristine Chou
New member
the foot,F of a hill and the base B,of a vertical tower TB,21m tall , are on the same horizontal level. from the top, T, of the tower, the angle of depression of F is 36.9 degrees, P is a point on the hill 24.5m away from F along the line of greatest slope. T,B,F and Pall lie in the same vertical plane. the angle of depression of Pfrom Tis 19.4 degree
a)show that :
1)TFis 35m approximately
2)sin TPF=3/7 APPROXIMATELY
B)calculate:
1)the gradient of the hill
2)the height, in meter, of P above F .giving ur answer correct to i decimal place.
a)show that :
1)TFis 35m approximately
2)sin TPF=3/7 APPROXIMATELY
B)calculate:
1)the gradient of the hill
2)the height, in meter, of P above F .giving ur answer correct to i decimal place.