Q: 147 (IAS/2000)

A goat is tied to two poles P and Q with ropes that are 15-metre long. P and Q are 20-metre apart as shown in the given diagram:
Which one of the following shaded portions indicates the total area over which the goat can graze ?
question_subject: 
Maths
question_year: 
2000
question_exam: 
IAS
question_sub_subject: 
Mathematics
question_topic: 
Mathematics
stats: 
0,120,96,32,120,32,32