Question

13. The area of a square greeting card is 91 square cm. If its breadth is 7 cm, what is its length?​

Answer 1

Answer:

The perimeter of a rectangle is the length of all its 4 sides. Formula to calculate the perimeter of a rectangle is:

Perimeter of Rectangle = 2 × Length + 2 × Breadth

The perimeter can be represented using a model as below.

Perimeter = Length + Breadth + Length + Breadth

= 2 × Length + 2 × Breadth

Length + Breadth = Perimeter ÷ 2

Answer 2

Answer:

Given:

Greeting card is a rectangle

Breath (b)=7cm

Area of greeting card=91cm²

To find:

length (l)=?

Solution:

area of greeting card=l×b

91=l×7

l=91/7

l=13

Answer:

Length (l)=13cm

Step-by-step explanation:

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