# ABCD is a square of side 20 cm. Find the area of blue coloured region formed by the semi-circles drawn on each side as shown in figure 13.26. ( = 3.14)figure 13.26.

side of a square (a) = 20 cm

we can see the semi-circle in the square having 10 cm as radius (r)

area of the colored region =

area of 4 semi-circles - area of the square

= 4 × ( × r2) - a2

= 2 (π × 102) - 202

= 228 cm2

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Areas Related to Circle36 mins
Quiz | Areas Related to Circles43 mins
Champ Quiz | Area Related with the Circle45 mins
RD Sharma | Area of Sector and Segment61 mins
Throwing the Light on Area of Sector43 mins
RD Sharma | Area Formed by Plane Figures46 mins
RD Sharma | Area of Sector and Segments25 mins
Quiz | A Letter to God39 mins
A Letter to God45 mins
Quiz | Area Related with Circles47 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses