Question

Find the area of the region in red colour.

• A. $20c{m}^2$
• B. $15c{m}^2$
• C. $5c{m}^2$
• D. $35c{m}^2$

Answer 1

The correct option is C $5c{m}^2$

Area of rectangle ABCD is $5\times 4=20c{m}^2$.

Area of yellow region = $15c{m}^2$.

It is seen from the diagram that, Area of rectangle ABCD = Area of yellow region + Area of red region. Therefore, area of red region = Area of rectangle – area of yellow region = $5c{m}^2$.