It Dependa what is your speed
Answer:
1.00 and 1.73
Step-by-step explanation:
1) Calculating the 1st and the 2nd leg using trigonometric function sine:

Once one leg is found there is another way to find the other leg, using Pythagorean Theorem too.

Sides
a hypotenuse: 2.00
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b leg: 1.73
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c leg: 1.00
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Answer:
x = 75
Step-by-step explanation:
x/15 = 5
Multiply each side by 15
15*x/15 = 5*15
x = 75
If you divide 287 by 77, it should take about 3 hours (rounded)