Subject :IMO Class : Class 5
In the given figure, the area of the shaded square is 144m2. What is the perimeter of the rectangle WXYZ?
A84 m
B86 m
C88 m
D90 m
how
Ans 1:
Class : Class 8
Shaded area = Area of 4 small squares = 144m2Area of 1 small square = 144 ÷ 4 = 36m2Side of small square = = 6mWZ = XY = 3 x 6 = 18mWX = ZY = 4 x 6 = 24mPerimeter of rectangle = 2 x (18 24)= 84cm
Ans 2: (Master Answer)
Class : Class 1
(A): Shaded area = Area of 4 small squares = 144 sq. m
Area of 1 small square = 144 ÷ 4 = 36 sq. m
Side of small square = 6m
WZ = XY = 3 x 6 = 18m
WX = ZY = 4 x 6 = 24m
Perimeter of rectangle = 2 x (18 + 24)
= 84 m
Ans 3:
Class : Class 8