Question

please answer but no
the best answer will marked as brainliest

Answer 1

square of 9 = 81
and length is given as 10 cm
so perimetre 2(l+b)
81= 2(10+b)
81-20=2b
61=2b
so b = 61/2
area = lxb
=10 x 61/2
=5x 61
=305cm^2

Answer 2

Answer: 80

Step-by-step explanation: perimeter of square = 4a = 9 x 4 =36

 perimeter  of square = that of rectangle

2 [ l+ b ] = 36

2[ 10 + b ] = 36

b= 8

area = 8 x 10 = 80