2(pi)r=2X3.14X3cm=18.85cm to four significant figures
The circumference of circle with radius 12cm is 75.4cm
r = 4.74835 cm
Area of cylinder = circumference x height = 2r x Pi x h = 12cm x Pi x 10cm = 120 x Pi square centimetres = 376.9911 cm2 (to nearest 4th decimal)
The circumference of a circle is C = 2πr, where C is circumference, π is pi (3.14), and r is radius. C = 2 x 3.14 x 12cm = 75cm = 75/1 cm
between 11.98 and 11.99 cm depending on how you calculate. 12cm is a good answer.
The lateral surface area of a right circular cone with a radius of 12cm and a slant height of 20cm is approximately 754cm2
A cone with a base radius of 12 cm and a height of 18 cm has a volume of 2,714.34 cm3
The circumference of a circle if the diameter is 12cm is 37.7cm
75.3984
360 / 78.2 = 4.60 - Gives the number of "slices of pie" of this size in the entire circle 4.60 * 12 = 55.245 - Gives circumference of the circle radius = circumference / 2pi radius = 55.245 / 6.283 = 8.79
The lateral surface area is 565.49cm2
22.80cm (rounded to two decimal places.