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Sagot :
Answer:
608 yard
Step-by-step explanation:
tan 50 degrees =a/510
a=tan 50 degrees x510
=608 yards
The distance across the lake, a is 611 yards
Right angle triangle:
Right angle triangle have one of its angles as 90 degrees. Therefore, the side a can be found using trigonometric ratios,
Therefore,
tan 47° = opposite / adjacent
tan 47° = a / 570
cross multiply
a = 570 tan 47°
a = 570 × 1.07236871002
a = 611.250164714
a = 611 yards
learn more on right triangle here: https://brainly.com/question/18450490
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