15 units (to 2 dp)
The surface area of a sphere with a radius of 15 units is 2,827 units2
17
Is the 30ft the radius or the diameter. The area of a circle = Pi x (radius squared), so, if the diameter is 30ft, making the radius 15ft, the area would be Pi x(15 squared) square feet, and the area of its semicircle would be half of that, so the area required = Pi x (15 squared) divided by 2 = 353.429 sq ft On the other hand, if the diameter is 15ft, making the radius 7.5ft then the area required = Pi x (7.5 squared) sq ft for the full circle and half as much for the semicircle = 88.3573 sq ft As an extra; you will find that the area of the smaller semicircle is exactly one quarter of that of the larger semicircle, and I wonder if you can reason out why that is so.
47.14285714285714 radius = 1/2 of diameter radius=7.5 which is half of 15 using circumference of circle formula (2 * by pi * by radius) pi=22/7 2*22/7*7.5=47.14285714285714
Approximate area of a 15 foot radius circle is a little more than 700 square feet.
The area of a circle with a radius of 15 cm is: 706.9 cm2
Area of a circle= (22/7)*r^2 where, r is the radius of the circle when r=15, area of the circle= 3.14*15*15 = 706.5 sq.units
The area of a circle is given by: pi multiplied by the square of the radius. So if the radius is 15, the area is 225pi (225 is 15 squared)
Area of compass: 3.14*15*15 = 706.5 square mm
The area of a circle has the formula πr2 This means pi x radius squared. If the radius is 15. Square 15- 15x15. Multiply it by pi(3.14159265) Answer is 706.9mm2
The radius of a circle with an area of 706.50 square inches is: 15 inches.
diameter is 15 area of the circle is... 706.5 if im not mistaken
711
706.86 square units.
706.9 cm2
For a circle Area is defined as: A = π(r)2 Where "A" is the area, "r" is your radius and π = 3.14 So for your circle: A = 3.14 x (15)2