Subject :IMO Class : Class 5
In the given figure, the area of the shaded square is 196 cm2.
What is the perimeter of the rectangle EFGH?
A 90 cm
B 54 cm
C 98 cm
D49 cm
How to solve it
Ans 1: (Master Answer)
Class : Class 1
The rea of the square is 196 sq units.
Hence, the side of the square will be the square root of 196 i.e 14 units
Now, from the figure, we can see that each square cell is of 7 units
Hence, the side EH is of 21 units and the side EF is of 28 units.
Now, the perimeter will be 2(L+B) = 49 cm.