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The distance across the lake, a is 611 yards
<h3>Right angle triangle:</h3>
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: brainly.com/question/18450490
Answer:
Well you can try to use a calculator, like the one on google. I can try to help if you really need it.
Step-by-step explanation:
Any number less than -3, so -3.5, -4, -5, -6, -6.35368, -7, etc.
The answer is 10 ..............................
