Wiki User
∙ 14y agoSurface area, S.A., of a sphere with radius r equals to 4pir2.
Since the diameter is decreased by 25%, the radius is also decreased by 25%.
That is r - 0.25r = 0.75r.
So that S.A. = 4pi(0.75r)2 = 2.25pir2
Wiki User
∙ 14y agoThe surface area of a sphere with a diameter of 7cm is 153.9cm2
Surface area of a sphere = 4*pi*radius2 radius = diameter/2
Yes, that's true. The surface area is (the square of the diameter) multiplied by (pi).
A cylinder with a height of 7cm and a diameter of 6cm has a surface area of 188.5cm2
The curved surface area of a cylinder that has a diameter of 8inches and a height of 5inches is 125.66inches2
The surface area decreases by 43.75%.
When the diameter of a sphere is decreased by 25%, its curved surface area decreases by approximately 43.75%. This is because surface area is proportional to the square of the radius, so a 25% decrease in diameter leads to a 43.75% decrease in surface area.
Yes, if it remains a cube.
the surface
Lines of latitude decrease in size as they move towards the poles because the Earth is a sphere, and the lines of latitude are parallel circles around the globe. As you move towards the poles, these circles become smaller as they converge towards a point at the poles. This decrease in size is due to the diminishing circumference of the Earth at higher latitudes.
The surface area of a sphere with a diameter of 7cm is 153.9cm2
A decrease in the surface area of the respiratory membrane will result in a decrease in gas exchange.
The surface energy decreases with an increase in planar density. This is because a higher planar density means more atoms are closely packed together, leading to a decrease in the number of surface atoms and therefore a decrease in surface energy.
The surface area of a sphere with a diameter of 25 inches is about 1,963.5 square inches.
The surface area of a softball with a diameter of 12 is about 452.4 square units.
The surface area of a sphere if its diameter is 9.65 cm equals 292.6cm2
The surface area of a sphere whose diameter is 18cm is 1018cm2