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What is the difference between circumference of circle and area of circle?
the circumference is pi times the diameter. the area is pi times radius-squared. And, of course, the Circumference is the distance around the circle, or the outside. While on the other hand, the area of a circle is the amount of space on the inside of a circle:) hope this helps !
How many degrees does the second hand on a clock travel when it moves through one second?
6 degrees. There are 360 degrees in a full circle, and therefore for every second the hand moves through one sixtieth of a circle.
How many degress does the minute hand move every second.Explain?
It moves 0.1 degrees per second. There are 360 degrees in a full circle - so, every minute that passes, the hand moves six degrees. Thus, every second, the hand moves one tenth of a degree (6 degrees divided by 60).
What are clocks that are not digital called?
Analog clocks have an hour hand and minute hand, and 12 numbers around a circle.
Why is the formula for circle's area pi times r squared?
Here is one way of approaching this formula.We need to know two things:* the area of a triangle is half the base times the altitude; * the circumference of a circle is 2 pi r. Draw a circle and inscribe a hexagon inside the circle. Then draw the radii from the centre of the circle to each of the six vertices of the hexagon. (Sorry, I don't have a diagram.)The hexagon has been divided into six triangles. Look at one of these triangles: it has base one side of the hexagon and altitude a bit less than the radius of the circle.The area of all six triangles is6 times (1/2) times (side of hexagon) times (altitude of triangle).Shuffle this slightly to get(1/2) times 6 times (side of hexagon) times (altitude of triangle).Now 6 times (side of hexagon) is the perimeter of the hexagon. Soarea of hexagon = (1/2) times (perimeter of hexagon) times (altitude of triangle).Do this again with a 12-sided figure instead of a hexagon, then a 24-sided figure, and so on. We getarea = (1/2) times (perimeter of many-sided figure) times (altitude of triangle).If we take a figure with a lot of sides, its area will be very close to that of the whole circle, its perimeter will be very close to the circumference of the circle, and the altitude of one of the (very thin) triangles will be very close to the radius.So (waving my hands a bit here),area of circle = (1/2) times (perimeter of circle) times (radius of circle).If we know that the perimeter of the circle is 2 pi r, we getarea of circle = (1/2) time 2 time pi times r times r = pi times r squared.This isn't quite a precise proof, because of the hand-waving bit. But it could be made into one. See Archimedes' proof in http://en.wikipedia.org/wiki/Area_of_a_disk.
How many times minute hand covers full circle in a day?
Well try to think about it logically. The minute hand completes a full circle every hour, so all you need to know is how many hours are in one day. Hope this helps you.
How many times does the second hand on a clock circle the clock in seven hours?
The second hand on the clock circles 420 times in 7 hours.
How far does the minute hand move in one hour?
It makes a full circle around the clock. For example, if it was six o'clock, the minute hand would have started at the top, at the 12. It would then make a full circle, until it reaches again, the 12. Then it would be seven o'clock.
How many circles does a minute hand make in a day?
The Minute hand makes a full circle of the clock's dial every Hour. Since there are 24 hours in a day, then the Minute hand travels 24 full circles every day.
What is the difference between circumference of circle and area of circle?
the circumference is pi times the diameter. the area is pi times radius-squared. And, of course, the Circumference is the distance around the circle, or the outside. While on the other hand, the area of a circle is the amount of space on the inside of a circle:) hope this helps !
How many degrees does the second hand on a clock travel when it moves through one second?
6 degrees. There are 360 degrees in a full circle, and therefore for every second the hand moves through one sixtieth of a circle.
How many degrees does the minute hand of a clock turn in half an hour?
Since an analog clock covers 360 degrees in a full hour, it covers 180 in half an hour because 180 - 0.5*360.
How many degrees does a clock move an hour?
One degreeActually the correct answer is 30 degrees if you are talking about the hour hand. The minute hand would move 360 degrees, a full circle.
What are the release dates for Hand Covers Bruise - 2013?
Hand Covers Bruise - 2013 was released on: USA: April 2013
What angle is formed by the hand of the clock at 420?
10°, on a standard 12-hour clock. The minute hand is pointing at the 4, but the hour hand has advanced by 1/3 of an hour, which is 1/36 of a full circle, or 10°.
How many radians does the second hand of a clock turn through in thirty second?
pi (there are 2 pi radians in a full circle) [or 3.14159]
How many degrees does the minute hand turn in 1 hour?
360 It goes round to where it started, so is 360 degrees full circle.
