Elitmus
Exam
Numerical Ability
Area and Volume
Square A is formed with the diagonal of square B as its sides and square B has the diagonal of square C as its side? Find the ratio of the area of square C to square A?
Read Solution (Total 6)
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- -----------correction in previous soln-------
ans 1:4
let side of square C is = x => area of square C = x^2
diagonal of C = √2* x =side of square B
diagonal of B = √2*(√2* x)= 2x = side of square A
=> area of square A = (2x)^2 = 4*x^2
reqd ratio =(area of square C )/ (area of square A) = x^2 /4*x^2 = 1:4
- 10 years agoHelpfull: Yes(37) No(1)
- let side of square C is = x => area of square C = x^2
diagonal of C = √2* x =side of square B
diagonal of B = √2*(√2* x)= 2x = side of square A
=> area of square A = (2x)^2 = 4*x^2
reqd ratio =(area of square C )/ (area of square A) = 4*x^2 / x^2 = 4:1
ans 4:1
- 10 years agoHelpfull: Yes(5) No(5)
- 1:4 i think
- 10 years agoHelpfull: Yes(0) No(0)
- square C B A
SIDE a a x sqrt2 2a
DIAGONAL a x sqrt2 2a 2 x a x sqrt2
AREA a^2 2a^2 4a^2 - 10 years agoHelpfull: Yes(0) No(0)
- ans is:1:4
- 10 years agoHelpfull: Yes(0) No(0)
- let side of square C is = x => area of square C = x^2
diagonal of C = √2* x =side of square B
diagonal of B = √2*(√2* x)= 2x = side of square A
=> area of A = (2x)^2 = 4*x^2
ratio =(area of C )/ (area of A) = 4*x^2 / x^2 = 4:1
ans 4:1 - 9 years agoHelpfull: Yes(0) No(2)
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