Question

a rectangular has a length of 10cm and a parameter of 30 cm find the width of the rectangular??
5 cm
10 cm
15 cm
20 cm​

Answer 1

Answer:

Length = 10 cm

Perimeter = 30 cm

width = ?

A/q Perimeter = 30

= 2(Length + width ) = 30

= 10 + width = 30/2

= 10 + width = 15

= width = 15 - 10 = 5 cm Ans...

Answer 2

Answer:

Step-by-step explanation:

Given:Length of Rectangle = 10cm, and

Perimeter =30cm

We Know,

Perimeter of Rectangle = 2(l+b)

i.e.,30 = 2 (10+b)

30 = 20 + 2b

30 - 20 =2b

2b = 10

b = 10/2 = 5cm

So, the correct option is : 5cm