Boys run kite on a cable of 68 meters long. What is the kite altitude, if the angle from the horizontal plane is 72°?

Correct result:

h =  65 m


l=68 m sinA=h:l  h=l sin(72 rad)=l sin(72 π180 )=68 sin(72 3.1415926180 )=65=65 m

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