Verified answer

height =7 cm

area of trapezium=1/2*(sum of parallel side )*height

= 1/2*(10+ 30)*7

=1/2*40*7

=1/2*280

=140

area of rectangular =l*b

=8*15

=120

area of figure =area of trapezium + area of rectangular

= 140+120 =260 sq . cm

ANSWER