SSC JE Civil Engineering 23-Mar-2021 Shift 2 Paper

According to the question, the diagram is as follow In the diagram the shortest distance between Zoya's office and her home is OC.
Right-angle triangle ODC
OD = 9 + 6 = 15
CD = AB = 8
According to the Pythagoras' theorem
OC2=OD2+DC2
OC2=(15)2+(8)2
OC2=289
OC=17‌km
The shortest distance between Zoya's home and her office is 17 km.