I need help with this math word equation plz

Question

A helicopter flying at an altitude of 1800m is directly overhead. After 15 minutes,it is still at an altitude of 1800m, but it's angle of elevation is 8 degrees. Calculate :

a) the distance travelled in that time to the nearest 100m

b) the speed of the helicopter in km/h

Answer 1

Draw and label a diagram!

A is your location

B is overhead helicopter

C is new position

 

m∠BCA = 8°, and m∠BAC = 82°

 

Use appropriate trig function to determine BC