Asked by Luke

A 20-foot-long footbridge has two diagonal supports that meet in the center of the bridge. Each support makes a 65∘ angle with a short vertical support. What is the length x of a diagonal support, to the nearest tenth of a foot?
Answered by mathhelper
According to my interpretation, x would be the length of
the hypotenuse.
so cos 65° = 20/x
x = 20/cos65 = ......
Answered by Anonymous
12.5
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