Latest elitmus Aptitude Question SOLUTION: A table cloth is in the shape of regular decagon(polygon with 10 sides) of side 4ft.it has roses printed on it and spread evently over its entire area. the cloth is draped over a t

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(#M40036580) ELITMUS Numerical Ability question apti Keep an EYE

A table cloth is in the shape of regular decagon(polygon with 10 sides) of side 4ft.it has roses printed on it and spread evently over its entire area. the cloth is draped over a table who is the shape of a regular decagon of side 2 ft. to a person who looks at the table from vertex above and cannot see any portion of the cloths hanging over the side approximately how many can he count?
1. 35 1/2 2. 40 3. 80 4. 20.

Asked In elitmus ranjeet (10 years ago)

Unsolved Read Solution (4)

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Read Solution (4) :

Nitish Kumar  (10 years ago)

we hv big polygon of side 4ft, so area of polygon = (ns^2)*cot(180/n)/4, where n=no. of sides and s=length of each side
so we get area of cloth polygon = 40cot(18)----------->1
now area of table=10cot(18)-------------------->2
area of cloth - area of table=>30cot(18)
so this value is less than 30 from options we have only 20
so answer is 20

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Soma Ghosh  (10 years ago)

value of cot18 is 3.077 ..answer cant b 20...........

Is this solution Helpfull? Yes (5) | No (1)  

Akash Poddar  (9 years ago)

then what is the ryt soln????

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Shivam  (7 years ago)

what wuld b the correct answer admin......!!!

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