Asked by BIZHATOCOTO
1a).A tower and a building stand on the same horizontal level.
From the point P at the bottom of the building, the angle of elevation of the top T,of the tower is 65°. From the top Q of the building, the angle of elevation of the point T is 25°. If the building is 20m high,Calculate the distance PT.
1b). Hence or otherwise calculatethe height of the tower ( give your answer to 3 significant figures)?
From the point P at the bottom of the building, the angle of elevation of the top T,of the tower is 65°. From the top Q of the building, the angle of elevation of the point T is 25°. If the building is 20m high,Calculate the distance PT.
1b). Hence or otherwise calculatethe height of the tower ( give your answer to 3 significant figures)?
Answers
Answered by
Reiny
I assume you made your sketch
Look at triangle PQT
angle QPT = 25° , (90-65)
angle PQT = 115°
so you can find angle QTP
then by the sine law:
PT/sin115° = 20/sin(QTP)
all yours from here ....
Look at triangle PQT
angle QPT = 25° , (90-65)
angle PQT = 115°
so you can find angle QTP
then by the sine law:
PT/sin115° = 20/sin(QTP)
all yours from here ....
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.