SOLUTION: Find sec B when a = 7 and b = 2.

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Question 1060363: Find sec B when a = 7 and b = 2.
Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!

sec%28B%29%7D%7D%7B%7B%7B%22%22=%22%22HYPOTENUSE%2FADJACENT%22%22=%22%22c%2Fa%22%22=%22%22c%2F7
We need c. So we use the Pythagorean theorem:
c%5E2%22%22=%22%22a%5E2%2Bb%5E2
c%5E2%22%22=%22%227%5E2%2B2%5E2
c%5E2%22%22=%22%2249%2B4
c%5E2%22%22=%22%2253
c%22%22=%22%22sqrt%2853%29

sec%28B%29%22%22=%22%22c%2Fa%22%22=%22%22sqrt%2853%29%2F7
Edwin