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?
Answer:
pentagon have 5 sides, 5 symmetry lines.
So your answer is Option C.
B.6z6
When you multiply with exponents you add the exponents together 4+2=6
Then just multiply the #s 2×3=6
1) Formula for the percent of error:
[estimated measure - real measure]
Percent of error = ---------------------------------------------------- x 100
real measure
2) Calculations:
[95 - 91]
Percent error = --------------- x 100 = 4.4 %
91
Answer: 4.4%
