Mountains top is visibled from the boat straight on Southwest 15,2 grades high. When the boat has been sailed 4,00 kilometres to the West, top is showing straight on the South. How long is the mountain?
Thank you if anyone could help me. I can`t find the right answer.
Thank you if anyone could help me. I can`t find the right answer.
Vastaukset 7
Vanhimmat
1.5
Thanks, could you tell me how did you get the right answer? I understand Finnish too.
cos 45° = 4 km / x x = 4 km / cos 45° = 5,656... km
tan 15,2° = h / x h = x * tan 15,2°
h = 5,656... km * tan 15,2° = 1,536... km ≈ 1,54 km
15,2 grades, not degrees
1 grad equals 0,9 degrees ... you do the math ;)
the question is "how tall" when you are referring to height.
"How long" refers to horizontal width.
Yeas, yeas. But I speek Americans pooch. In American we say that everything is long: the people, landscapes and everything.That`s hau viiii do! (: