Question

Two boys are on either side of their school building of 20 m height observe its top at the angles of elevation 30 and 60 respectively. Find the distance between the two boys.

Answer 1

Answer:

Step-by-step explanation:

P=20

Angle A=30

B1= ?

Tan30=P/B

1/√3=20/B1

B1=20√3m

B2=?

Angle B = 60

Tan60=P/B

√3=20/B2

B2=20/√3

B2=20√3/√3 m.

Distance between two boys=B1+B2

=20√3+20√3/3

=60√3/3+20√3/3

=80√3/3m.