# In the given figu

Given:

Diameter of semicircle PSR = 10 cm

Radius of semicircle PSR = = 5 cm = r1

Diameter of semicircle RTQ = 3 cm

Radius of semicircle RTQ = = 1.5 cm = r2

Diameter of semicircle PAQ = 7 cm

Radius of semicircle PAQ = = 3.5 cm = r3

Perimeter of semicircle = πr

Perimeter of semicircle PSR = πr1

= 3.14 × 5 = 15.7 cm

Similarly, Perimeter of semicircle RTQ = πr2

= 3.14 × 1.5 = 4.71 cm

and Perimeter of semicircle PAQ = πr3

= 3.14 × 3.5 = 10.99 cm

Perimeter of shaded region = Perimeter of semicircle PSR

+ Perimeter of semicircle RTQ

+ Perimeter of semicircle PAQ

= 15.7 + 4.71 + 10.99 = 31.4 cm

Hence, the perimeter of the shaded region is 31.4 cm.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
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 RELATED QUESTIONS :

The cost of fenciRS Aggarwal - Mathematics