Question

A piece of string is 60 cm long is bent to make a rectangle whose breadth is 10 cm. What will be the length of the rectangle?
50 cm
40 cm
30 cm
20 cm

Answer 1

Step-by-step explanation:

• 2(l+b)=60
• 2(l+10)=60
• l + 10 = 30
• l = 30 - 10
• l = 20

Your answer is 20 cm

Answer 2

Step-by-step explanation:

➡️ The total string is of 60 cm and breath is given 10 cm

• the formula for perimeter of rectangle is 2( l + b )
• 2 ( l + b ) = 60
• 2 ( l + 10 ) = 60
• 2L + 20 = 60
• 2L = 40
• l = 20

Your answer is 20cm.