Elitmus
Exam
Numerical Ability
Co-ordinate geometry
does anyone remember the options of a question which was "a square with 5 circle with equal center ant side of square 2 unit and so on" please tell?
Read Solution (Total 3)
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- I found ans as option D (none of these)
becoz it ans willl be area 0f square-2 * area of circle.
but we have to find its radius with the help of side of square.
formulatation : 4 - 2 *pi*r*r
and r will 0.5 * x/sqrt(2)
here x=2
hope it will helpful for you. - 9 years agoHelpfull: Yes(7) No(0)
- here I depicted pic of,it will help to solve the question easily
www.rahul-kumar.in/elitmus1.png - 9 years agoHelpfull: Yes(2) No(0)
- find diagonal=2*sqrt2
for radius of all equally 5 circle= diagonal/4 = 1/sqrt2
area of middle circle=pi*(1/sqrt2)^2 =pi/2
area of all 4 corner circle include in square= 4*pi /(2*4)=pi/2
area of square= 2*2=4
remaining part of area =4 - (pi/2 + pi/2) = 4-pi - 9 years agoHelpfull: Yes(1) No(0)
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