Question

A picture is 40cm wide and 1.2m long . the ratio of its length to its perimeter is​

Answer 1

Step-by-step explanation:

Perimeter of this picture = 2(l+b)

= 2 (40+120)

2(160) = 320 cm.

Ratio of lenth to its perimeter is = 40:320

=1 : 8...

Answer 2

Solution:

Breadth = 40cm

Length = 1.2m = 120cm [1m = 100cm]

[1.2m = 1.2 × 100 = 120cm]

Perimeter of Rectangle = 2(l + b)

Perimeter of Rectangle = 2(120 + 40)

Perimeter of Rectangle = 2(160)

Perimeter of Rectangle = 320cm

The ratio of its length to its perimeter

= 120/320

= 12/30

= 6/15

= 2/5

= 2:5

Hence, the ratio of its length to its perimeter is 2:5.