Question

A border is 4 cm wide. Each side of the painting is 40 cm long. Find the area of the border. Show the process of how to get the anwser. How is the anwser 8?

1

Answer 1

Answer :

Area of the border is 336 cm².

Step-by-step explanation :

Given :

• A border is 4 cm broad.
• Each side of the border = 40 cm

To Find :

• Area of the border.

Calculations :

We know that,

• Area of square = side × side so, by evaluating, we will put the values in the formula, [side = 40 cm long] so we'll perform multiplication.

Area of painting,

⇒ (40 × 40) cm

⇒ 1600 cm²

Hence,

• The area of painting is 1600 cm².

Given that,

• Width of the border = 4 cm

Now, let's calculate the dimensions, by adding the width and side of the painting.

⇒ 40 + 4

⇒ 44 cm

Now,

Area of painting + border = 44 cm² = 1936 cm².

Area of border = Area of painting + border - Area of painting

⇒ 1936 - 1600

⇒ 336 cm².

Therefore,

• Area of the border is 336 cm².