(25-x)^2 + y^2 = 20^2 solve
1st:
what is the relation between x and y
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(25-x)^2 = 625 - 50x + x^2
(25-x)^2 + y^2 = 20^2
625 - 50x + x^2 + y^2 = 400
y^2 + x^2 - 50x = 400 - 625
y^2 + x^2 - 50x = -225
y^2 + x^2 -50x + 225 = 0
we can solve upto this because there is not given any relation about x & y
(25-x)^2 + y^2 = 20^2
625 - 50x + x^2 + y^2 = 400
y^2 + x^2 - 50x = 400 - 625
y^2 + x^2 - 50x = -225
y^2 + x^2 -50x + 225 = 0
we can solve upto this because there is not given any relation about x & y
hypotenuse. Find the Volume and Surface Area of the double cone so formed.this is the actual question. im sorry but i didnt get how to find the height and base of the bottom cone.
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