Answer variants:
30
42.4
45.4
81
S. No
Column I
Column II
1
pic 9 (2).svg
 
\(BC =\) 5 \(cm\)
 
\(AB=\) 8 \(cm\)
 
Find the area of the shaded region.
 \(m^2\)
2
pic 10 (2).svg
 
\(OB =\) 9 \(m\)
 
The area of the shaded region?
 \(m^2\)