Elitmus
Exam
Numerical Ability
Geometry
In a square , all the mid points are joined. the inner square is shaded. If the area of the square is A, what is the shaded area?
Read Solution (Total 10)
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- the shaded area is half the area of the square (having are A)
therefore answer is A/2 - 8 years agoHelpfull: Yes(14) No(3)
- Let the side of the bigger square is 2 units. Then it's Area will be 4 units. Now the smaller square is formed by joining the mid points of the bigger square and after shading the smaller square 4 triangles are left at the corners which are right angles triangle. On applying Pythagoras we can find the side length of the smaller square which will come as (1^{2}+1^{2}=sqrt{2}).
Now the area of the smaller square is (sqrt{2}×sqrt{2}=2)
Which is half of the bigger square. - 8 years agoHelpfull: Yes(9) No(1)
- Let the side of square be 'x' so area is x^2= A,
now since the shaded square is formed through mid points, the side of the shaded square would be x/sqrt(2) (Using pythagoras theorem)
hence new area would be (x^2)/2 = A/2 - 8 years agoHelpfull: Yes(3) No(0)
- let, the square side is a. then the area is a*a
the inner sqare side will be a/sqrt(2)
the area of it is a*a/2 - 8 years agoHelpfull: Yes(1) No(1)
- if A is the area of the square then rt of A is the side of the square. Then by using Pythagoras theorem, the side of shaded square is sq.rt of (A/2). Therefore the are of shaded square is (A/2)
- 8 years agoHelpfull: Yes(1) No(0)
- This is simple, it is a square, now u r joining mid points so 4 more inner square will be created and each one will have same area which is A/4.
- 8 years agoHelpfull: Yes(1) No(1)
- let A=a^2 means side of sqr=a
for inner sqr side=sqrt(a^2/4+a^2/4)=a/sqrt(2)
area of inner=a/sqrt(2)*a/sqrt(2)=a^2/2=A/2 - 8 years agoHelpfull: Yes(0) No(0)
- A/2,
as each side will be of length root(A)/2,
using pythagoras theorem find the side of the shaded square, and hence the area - 7 years agoHelpfull: Yes(0) No(0)
- A/2, since shaded area is a2/2
- 7 years agoHelpfull: Yes(0) No(0)
- This is a fixed pattern question. In this any square made by joining "mid point" of a square then area of shaded square will always be 1/2 of big square.
- 2 years agoHelpfull: Yes(0) No(0)
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