Question 922005
1)in a polygon there are 6 right angles and the remaining angles are all equal to 200 degree each the number of sides the polygon has ?
Question:: Are you saying there are 6 interior angles?
Comment:: If there are 6 right angles, the sum of the corresponding
exterior angles would be 720.  But the sum of the exterior angles
must be 360, if the polygon is convex. All I can say is, you have
a strange polygon.
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 2) the ratio between the radius of the base and the height of the cylinder is 2 :3 if the volume is 1617 cm cube the total surface area of cylinder is ?
radius = 2x ; height = 3x
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Volume = area of base*height
1617 = (pi*x^2)*3x
1617 = 3pix^3
x^3 = 1617/3pi
x = 5.83
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Surface area = Perimeter*height
radius = 2x = 11.66
diameter = 23.33
SA = (pi*23.33)*(3*5.83) = 407.95pi cm^3
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Cheers,
Stan H.
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