Question

14. (4) Area of trapezium ( =frac{1}{2} times(a+b) times h )
( Rightarrow quad 18=frac{1}{2} times(5+b) times 3 )
( 36=15+3 b )
( therefore quad b=frac{21}{3}=7 mathrm{cm} )

# 14. The area of a trapezium is 18 sq cm. Its height and base are 3 cm and 5 cm respectively. Find the length of the side parallel to the base. RRB NTPC (Phase I) 2016 (1) 4 cm (2) 6 cm (3) 8 cm (4) 7 cm

Solution