The question was Aeroplane A travels 400 km/h on a angle of elevation of 30 degrees. Aeroplane B travels 500km/h at a angle of elevation of 25 degrees. Supposing these angles just took of and there was no run up please answer the following questions.
1) What is the distance covered by both Aeroplanes if they were both flying for 30 minutes supposing there was no speed build up nor decrease.
(note) for this question I calculated the adjacent side as that was the distance COVERED and not how much it travelled. Am I correct of doing so?
2) Find the altitude of both aeroplanes after 30 minutes
(note) for this question I used my answer for part a and I did Pythagoras to find the opposite side or in this case the altitude. I did not use Sine to figure it out. Am I wrong in my calculations?
3) What is the difference of altitude of these 2 aeroplanes?
(note) When I calculated this with my previous answer I got a final answer of 5.66 km. However If I used sine and not Pythagoras I get 5.65 km. Which is correct?
*PS* it'd be great if you tried both ways. If you find any fault in my methods please tell me.
Thanks, Grade 9 student.
1) What is the distance covered by both Aeroplanes if they were both flying for 30 minutes supposing there was no speed build up nor decrease.
(note) for this question I calculated the adjacent side as that was the distance COVERED and not how much it travelled. Am I correct of doing so?
2) Find the altitude of both aeroplanes after 30 minutes
(note) for this question I used my answer for part a and I did Pythagoras to find the opposite side or in this case the altitude. I did not use Sine to figure it out. Am I wrong in my calculations?
3) What is the difference of altitude of these 2 aeroplanes?
(note) When I calculated this with my previous answer I got a final answer of 5.66 km. However If I used sine and not Pythagoras I get 5.65 km. Which is correct?
*PS* it'd be great if you tried both ways. If you find any fault in my methods please tell me.
Thanks, Grade 9 student.