This is default featured slide 1 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 2 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 3 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 4 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

This is default featured slide 5 title

Go to Blogger edit html and find these sentences.Now replace these sentences with your own descriptions.

মঙ্গলবার, ২৩ মে, ২০১৭


           Area of a POLYGON


From figure we can observe that all the side that having in polygon are equal length . so if we add all the vertex from the center than we will get all the triangle having same area . Now the angle created from the center is ((2*pi)/n) , as total angle from center is 2*pi. so for 1 triangle the area is

(1/2)*a*b*sin((2*pi)/*n).
here a=b=r;
so area of 1 triangle = 
(1/2)*(r*r*sin((2*pi)/n))
so for the n triangles the total area is 

area of polygon
n * (1/2)*(r*r*sin((2*pi)/n))
observe the figure more for  detail

so now solve this problem 
UVA 10432 (area of polygon)




Share:

এই ব্লগটি সন্ধান করুন

ব্লগ সংরক্ষাণাগার

Blogger দ্বারা পরিচালিত.

Home

Blogger templates