Hello sir,
Please help me with the approach.
Hello Richa PFA the approch .
Alternate Approach :
There are 12 uniformly spaced points on a circle with radius 10. Each of these points is joined with the two adjacent points by straight lines. Find the perimeter of the polygon so formed.
Hi Nikita
Please find attached the solution :
Hello sir , kindly share the solution to this problem -
Hello Nikita PFA solution
Hi Aniket,
Is O the centre ?
yes sir
o is the centre
PFA the solution :
hi sir, please help
Hi Richa
If we see clearly red curve is made by joining half circumference of each circle so
Req arc = 4( half circumference)
= 4* pi* 6
=24 pi
Hi Anikat,
This is what I too thought, but red curve isn't half the circumference of each circle. The answer isn't 24pie but 20pie.
sir, can you please answer this question?
hi, richa
area of smaller circle =1
r=1/√pi
therefore, R=r/3
so this fig will be made
I could only come up with this solution if u get a better solution please do share in future
Hello sir , kindly solve this question -
PFA the solution
answer is d ?
AB and CD are two mutually perpendicular diameters of the circle shown and DF is a chord such that DE = 5 and EF = 3. Find the area of the circle.
ans: 20pie
Join C - F
∆CFD ~ ∆EOD
CD/FD = ED/OD
2r/8 = 5/r
2r² = 40
r² = 20 .
Area of the circle : πr² = 20π
Hi Sir, please help.
solution please
