Question

A thin wire 20 cm long is formed into a rectangle . If the width of this rectangle is 4 cm. what is its length​

Answer 1

Answer:

6 cm

Step-by-step explanation:

Perimeter = 20 cm Width = 4 cm Perimeter of rectangle = 20 2 (l + b) = 20 2 (l + 4) = 20 l + 4 = 20/4 l = 10 – 4 l = 6 cm.

Answer 2

Answer:

Hope This Helps You

Step-by-step explanation:

Perimeter of the wire =20cm

                   2(l+w)=20

               ⇒2[l+4]=20

               ⇒2l+8=20

               ⇒2l=12

               ⇒l=6cm

Hence, length =6cm