Question

Each side of a square field measures 21 m. Adjacent to this field, there is a rectangular field
having its sides in the ratio 4 : 3. If the perimeters of both the fields are equal, find the
dimensions of the rectangular field.
please tell​

Answer 1

Answer:

l = 16m

b=12m

Step-by-step explanation:

length : breadth of rectangle = 4:3

length l = 4x

breadth b = 3x

sides of sq. = 21

peri. (square) =4 ( side)

= 4 x 21

= 84 m----(1)

p(sq.) = p(rectangle)

84 = 2(l+b)

84=2( 4x +3x)

84=2( 7x)

84÷2 = 7x

28=7x

28÷7=x

x=4

l = 4x=4x4= 16m

b=3x= 3x4=12m