The area is now twice the original value
It quadruples.
the area of the circle is increased by 400%
If the radius and height of a cylinder are both doubled, then its surface area becomes 4 times what it was originally, and its volume becomes 8 times as much.
When the diameter of the circle doubled, its circumference also doubled.However, its area increased to 4 times the original area, while nobody was looking.
If the radius of a sphere is doubled, the surface area increases by (2)2 = 4 times, and the volume increases by (2)3 = 8 times.
The area gets doubled.
The area doubles.
In the first case, the area will remain the same. In the second case, the area will doubled.
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If the linear dimensions are doubled, the area is multiplied by (2)2 = 4 .
The area doubles if the base stays the same.
The area is doubled. a,b - cathetus; c - hypotenuse; h - height; S - area. S = (a*b)/2 = (c*h)/2 obviously if k is the doubled height. and A is the new area. A = (c*k)/2 = (c*2h)/2 = c*h and A = S*2
since the volume of a right cylinder is height x area of base, the area of the baseis Pi * r^2 (r is radius which is 1/2 of diameter), so the area of the base did notchange, while the height is doubled so the volume is doubled.
It depends on whether the question is about a 2-dimensional object or a 3-d object, and in the latter case whether it concerns the surface area or volume.
The area is multiplied by 4, not doubled.
If the base stays the same, the area is also doubled.
The change in the surface area depends on the shape. The volume will double.