It is a solid shape that contains lateral surface and two circular bases which are parallel and congruent.
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W-l00-7to be all to become one
<h3>Answer: 120 different ways</h3>
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Explanation:
There are...
- 6 ways to select the first place winner
- 5 ways to pick the second place winner
- 4 ways to pick the third place winner
We start with 6, and count down by 1 each time we fill up a slot. We stop once the third slot is filled or accounted for. The countdown is to ensure that we don't pick the same person twice. From here, multiply those values: 6*5*4 = 30*4 = 120
Interestingly, this is equal to 5! = 5*4*3*2*1 = 120 because the 3*2 becomes 6 and that *1 at the end doesn't affect things. Though usually results of permutation problems don't always end up like this. The order matters because a result like ABC is different from BAC, where A,B,C,D,E,F are the six school organizations.
As a slightly longer way to do the problem, you can use the nPr formula which is where n = 6 and r = 3 in this case. The exclamation marks indicate factorial. If you go this route, you should find that one of the steps will involve 6*5*4.
See below for the examples of sectors and arcs of a circle
<h3>Area of sector of a circle</h3>The area of a sector is calculated as:
---- when the angle is in degrees
---- when the angle is in radians
Take for instance, we have the following problems involving sector areas
Calculate the area of a sector where the radius of the circle is 7, and
- The central angle is 30 degrees
- The central angle is π/12 rad
- The central angle is 90 degrees
- The central angle is π/4 rad
- The central angle is 180 degrees
Using the above formulas, the sector areas are:
1.
2.
3.
4.
5.
The length of an arc is calculated as:
---- when the angle is in degrees
---- when the angle is in radians
Take for instance, we have the following problems involving arc lengths
Calculate the length of an arc where the radius of the circle is 7, and
- The central angle is 30 degrees
- The central angle is π/12 rad
- The central angle is 90 degrees
- The central angle is π/4 rad
- The central angle is 180 degrees
Using the above formulas, the arc lengths are:
1.
2.
3.
4.
5.
The examples include:
- A parabolic path
- Distance in a curve
- Curved bridges
- Pizza
- Bows
Read more about arc and sectors at:
#SPJ1