Asked by Elle

C
|\
| \
| \
| \ A
| -----\
| |
| |1.7m
| |
| |
------- B
D

AB = 1.7m
CD:AB = 1.5 : 1

The angle of elevation of C from A is 52 degrees.

What is the length of BD.

Answer to 3 significant figures please.

Thanks
Answered by Elle
Answer in metres.
Answered by Steve
AB = 2x = 1.7
CD = 3x = 2.55
BD/CD = tan52°
BD = 2.55 tan52° = 3.264

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