Its diameter will be: 2*100 = 200 miles
The radius of a circle is 1/2 of its diameter
A circle with a radius of 50 mm has an area of 7853.98 square mm
5.6433 ft radius or 11.2866 diameter
If 50' is the diameter, 50 x pi, if 50' is the radius, 100 x pi.
The area of a circle with a radius of 100 is: 31,420 square units.
100. The radius is 1/2 of the diameter.
The radius of a circle is 1/2 of its diameter
It is 100 units.
200 miles
100 feet.
This is the area of a circle with a radius of 100 miles →area = π × radius² = π × (100 miles)² = 10,000π sq miles ≈ 31416 sq miles
5.6433 ft radius or 11.2866 diameter
A circle with a radius of 50 mm has an area of 7853.98 square mm
5 hours The radius is 100 miles, so the diameter of the circular listening area is 200 miles. If you start at one side of the circle and drive straight through to the other side you are driving 200 miles. Divide the 200 miles by 40mph and you get 5 hours.
First of all, you have to promise us that you're talking about a circle.We're going to assume that, since you mentioned 'radius'.The perimeter of a circle ... usually called its 'circumference' ... is (pi) x (the circle's diameter).The circle's diameter is (2) x (its radius).Diameter = 200 millimetersCircumference = (pi) x (200) = 628.319 millimeters (rounded)
Cross-sectional_area = area of circle with diameter 100 mils. 1 mil = 1/1000 in. radius = ½ × diameter area_circle = π × radius² = π × (½ × diameter)² = π × (½ × 100 × 1/1000 in)² ≈ 0.00785 in²
Assuming that a 100 ft circle is one with a diameter of 100 ft (ie radius of 50 feet), area = pi*502 = 1963.5 sq feet