Question

2. Find the perimeter of a rectangle with l=12cm 5 mm and b 56mm.​

Answer 1

Step-by-step explanation:

area=l×b

1cm=10mm

l=125mm

b=56mm

area=125×56

7000mm^2

or

70cm^2

please mark brainliest

Answer 2

Answer:

Change 12cm into mm.

1cm=10mm

Then use this formula:

p=2(l+b)

You will get the answer in mm then change it into cm.

Hope my explanation help you.