Question

The perimeter of a rectangular painting is 340 centimeters. If the width of the painting is 77 centimeters, what is its length?

Answer 1

98 centimeters

Explanation:

perimeter of rectangle=2(l+b)

width=breadth=77centimetrs

perimeter=340 centimeters

340=2(l+77)

340=2l+144

340-144=2l

196=2l

l=98 centimetrs