Question

A square and a rectangle are of the same perimeter the lenght of the side of the square is 8cm.if the widht of rectangle is 6cm,find the lenght of rectangle and hence find it area​

Answer 1

Step-by-step explanation:

4a= 2(l+b)

4(8)=2(1+6) 32=21+12

21-32-12

21=20

|=10cm

area= lxb

area=10x6

area=60sqcm is answer

Answer 2

Answer:

60 sq cm

Step-by-step explanation:

Perimeter of square = 4a = 32 cm       -1

Perimeter of rectangle = 2(l+w) = 2(l + 6)= 2l +12 cm        -2

as eq 1= eq2

therefore 2I+12 = 32

l=10 cm

hence, length of rectangle is 2cm.

area of rectangle = l x b =10 x 6 = 60 sq cm