Question

each side of square flower bed is 2m 80cm long.it is extended by digging a strip 30cm wide all around it. find the area of the enlarged flower bed and also the increase in the area of the flower bed.

Answer 1

Answer:

Step-by-step explanation:

s = 2m 80cm + 30cm + 30cm = 3m 40cm = 3.4m

$A_enlarged area$ = s × s

   = 3.4 × 3.4

   = 11.56$m^{2}$

$A_Area before$ = 2.8 × 2.8

   = 7.84$m^{2}$

$A_increase in area$ = 11.56 - 7.84

   =3.72$m^{2}$