Question

21. Determine the length “I”, if perimeter of an envelope = 32 cm and the breadth 'b' of
envelope = 6cm. The envelope is in the shape of a rectangle​

Answer 1

Answer:

perimeter of an envelope is equal to 32 centimetre

it means

2(L+B) =32

2(L+6) =32

2L+12=32

2L=32-12

2L=20

L=10cm