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2 years ago

5

State a definition for a polygon inscribed in a sphere.

1 answer:

mojhsa [17]2 years ago

4 0

Consider the situation given below:

Let a regular polygon be inscribed in a sphere such that its circumcentre is at a distance r from the centre of the sphere of radius R. A point source of light is kept at the centre of the sphere. How can we calculate the area of the shadow made on the surface of the sphere.

I tried to use the relation: <span>Ω=<span>S<span>R2</span></span></span>

But of course that is the case when a circle would be inscribed. So can I somehow relate it for any general polygon?

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A restaurant will select 1 card from a bowl to win a free lunch, jimmy puts 10 cards in the bowl. The bowl has a total of 150 ca

Phantasy [73]

The odds of jimmy winning a free lunch is 0.066.

<h3>What is Probability ?</h3>

Probability is the likeliness of an event to happen.

It is given that

A restaurant will select 1 card from a bowl to win a free lunch,

jimmy puts 10 cards in the bowl.

The bowl has a total of 150 cards in it

The odds of jimmy winning a free lunch is given by

= No. of chances / Total Outcomes

= 10/150

= 1/15

= 0.066

Therefore the odds of jimmy winning a free lunch is 0.066.

To know more about Probability

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3 0

2 years ago

The area of these shapes are?

kipiarov [429]

Answer:
Figure 1:
Area = 390ft^2

Figure 2:
Area = 325.17 ft^2

7 0

2 years ago

Which equation has a solution of x = -17

Agata [3.3K]

Answer is (d) -4x = 68

Solving it we get :

-4x = 68

x = -68/4 = -17

8 0

2 years ago

Pure acid is to be added to a 10% acid solution to obtain 72 L of a 20% acid solution.

Crank

Answer:

36

Step-by-step explanation:

because 10 is 1/2 of 20 and 72/2 = 36

8 0

3 years ago

How many 3 3/4 inch wires can be cut from a spool if wire that is 100 inches how much will be left over

Akimi4 [234]

How many 3 $\frac{3}{4}$ wires can be cut from a spool of wire that is 100 inches long?

How many inches will be left over?

Number of pieces of wires = length of spool of wire ÷ length of each piece of wire.

Number of pieces = 100 ÷ 3 $\frac{3}{4}$ = 100 ÷ $\frac{15}{4}$

That gives $\frac{100 * 4}{15}$

Simplifying gives $\frac{400}{15}$ = $\frac{80}{3}$

This is equivalent to 26 $\frac{2}{3}$ pieces

So 26 pieces of wires can be cut from a spool and $\frac{2}{3}$ of a piece will be left over.

6 0

2 years ago