Question

calculate the area of
colourful Part.​

Answer 1

Given: length and breadth of a rectangle are 14m and 26m.

Now,

we have to find the external area of a rectangle

By using formula: Length × breadth

external area= 14m ×26m

= 364m2

So,

External area of a rectangle is 364m2

Now,

we have to find internal length and breadth of a rectangle

By using formula: external length and breadth - width of a rectangle

Internal length = 26m -3m

= 23m

Internal breadth = 14m - 3m

= 11m

Now,

we have to find internal area of a rectangle

By using formula: length × breadth

Internal area= 23m × 11m

= 253m2

SO,

Internal area of the rectangle is 253m2

Now,

we have to find the area of colourful part

By using formula:(External -Internal) area of the rectangle

According to the question

=(364- 253) m2

= 111m2

Hence,

The area of colourful part is 111m2