tamara knows thr perimeter of her rectangularshaped deck is 40 feet. The width is 8 feet. How long is it?
2 answers:
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The acute angle is 40.40 degrees
<h3>How to determine the acute angle?</h3>The cosine of the angle is given as:
cos(x) = 0.7620
Take the arc cos of both sides
Evaluate the arc cos
x = 40.359
Approximate
x = 40.40
Hence, the acute angle is 40.40 degrees
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