(4/pi)1/2 = 1.12838
To calculate the area of a circular shape you square the radius and times that by pi. So to find the radius from the area you divide the area by pi, then find the square root of the result. So the calculation would be
Divide 4 by Pi.
Find the square root of your result.
Done! :)
The lateral area of a cylinder with a radius of 3.5 and a height of 4 equals 87.96 units2
The surface area of a cylinder with a radius of 4 and a height of 17.4 is 537.84 square units.
The answer will depend on whether the larger cylinder is 4 times larger in terms of radius, cross-sectional area, or volume. If radius, multiply the smaller radius by 4. If cross-sectional area, multiply the smaller radius by 2. If volume, you do not have enough information.
113.10
75.4 units2
If the radius of the hemispheres is 4, then that leave 4 units for the length if the straight part of the cylinder. Total surface area = surface area of 1/2 sphere of radius 4 + lateral surface area of cylinder of radius 4 and height 4 + surface area of 1/2 sphere of radius 4. = surface area of sphere of radius 4 + lateral surface area of cylinder of radius 4 = 4*3*pi*43 + pi*42*4 = 469.1 cubic units.
The lateral area of a cylinder with a radius of 3.5 and a height of 4 equals 87.96 units2
The surface area of a cylinder with a radius of 4 and a height of 17.4 is 537.84 square units.
A cylinder with radius 4 and height 12 has a total surface area of 402.12 units2
The answer will depend on whether the larger cylinder is 4 times larger in terms of radius, cross-sectional area, or volume. If radius, multiply the smaller radius by 4. If cross-sectional area, multiply the smaller radius by 2. If volume, you do not have enough information.
A cylinder that has a radius of 3 ft and height of 4 ft has a surface area of 131.95 square feet.
7
113.10
The surface area is 175.93 units2
75.4 units2
3298.67 units2
The surface area of cylinder with radius equal to 4 and height equal to 9 is 326.725 square units.