Question

Two persinson the same side of a tall buildings notice the angle of elevation of the top of the building be 30° and 60° respectively if the height of building is 72m,find the distance between the two persons.(✓3=1.73)

Answer 1

Answer:

:

P=72m.

B1=?

Angle A = 30

Tan30=P/B

1/√3=72/B1

B1= 72*1.73

B1=124.56m.

B2=?

Angle B= 60

Tan60=P/B

√3=72/B2

B2=72/1.73

B2=41.62

Distance between two boys = B1+B2

=124.56+41.62

B. =166.18m.