Do the points P (-1, 6), Q (3, 7) and R (3, -5) form a right triangle? ( show your work )
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In this question , it is given that we have a cylinder with with a radius of 9 and a surface area of approximately 791.68 units square.
The formula of surface area of cylinder is
Substituting the values of A and r, we will get
So the height of the cylinder is 5 units .