Question

(b) The area of a rectangular painting is 7719 cm2.

Answer 1

Given:

• The area of a rectangular painting is 7719 cm²
• Width of painting = 83cm

To Find?

• Length of painting.

Solution:

• Let length of painting be x cm

Using formula:

• Area of rectangle = L × B

Where,

• Length = x cm
• Breadth = 73 cm

→ 7719 = x × 83

→ x = 7719/83

→ x = 93 cm

Hence,

• Length of painting is 93cm

Answer 2

We are given that the width of of a rectangular painting is 83 cm and it's area is 7719 cm² and we are asked to find it's length , as we know that the area of a rectangular shape is given by L×B. Where L is the length of the rectangular shape and B is the width/Breadth .Now , applying the same concept in our question we have ;

${:\implies \quad \sf L\times 83=7719}$

${:\implies \quad \sf L=\dfrac{7719}{83}}$

${:\implies \quad \sf L=93}$

${:\implies \quad \bf \therefore \quad \underline{\underline{Length=93\:\: cm}}}$