Question

what is the length and perimeter if breadth is 12 cm and area is 240 cm²
plz tell fast??​

Answer 1

Answer:

20cm and 64cm respectively

Step-by-step explanation:

Area=length×breadth

240cm=length×12cm

length=(240/12)cm

length=20cm

Perimeter=2(l+b)

=2(20+12)

= 2×32=64 cm

Answer 2

Answer:

Length = 20 cm, Perimeter = 64 cm

Step-by-step explanation:

Breadth = 12

Area = 240 cm square

To find the length = Area / Breadth

= 240 / 12

= 20 cm

Perimeter of a rectangle = 2 (l+b)

= 2 (20+12)

= 2 × 32

= 64 cm