defence exam CRPF Head Constable Ministerial & ASI 2022 Mock Test Quantitative Aptitude Mensuration Plane Figures
Let PQRS be the diameter of a circle of radius 9 cm. The length PQ, QR and RS are equal. Semi-circle is drawn with QS as diameter (as shown in the given figure). What is the ratio of the shaded region to that of the unshaded region?
1
25 : 121
2
5 : 13
3
5 : 18
4
1 : 2