Question

7. The distance between two parallel sides of a trapezium of area 441 sq. cm is 18 cm. If one of the sides
is 28 cm, find the other side.
8. The area of a trapezium is 390 sq. cm. One of its parallel sides is 5 cm longer than the other and the
distance between them is 12 cm. Find the length of the parallel sides of the trapezium.
9. The area of a trapezium is 380 sq. cm. If its parallel sides are in the ratio 3 : 5 and the perpendicular
distance between them is 19 cm, find the length of each parallel side.
10. The parallel sides of a trapezium are 40 cm and 16 cm. Its non-parallel sides are 13 cm each. Find the
area of the trapezium.
11. The area of a trapezium is 1586 sq. cm. If the lengths of its parallel sides are 38 cm and 84 cm, find the
distance between them.
12. Find the area of the following quadrilaterals :
(ii)
B
C
10 cm
6 cm
C С
B
6 cmd
16 cm
8 cm P
D
А
D
A
13. Find the area of a trapezium whose parallel sides are 38 cm and 22 cm, and the distance between them​

Answer 1

Answer:

formula :-

area= 1/2 (a+b) h

441 sq.cm=1/2 (28+b) 18

441/18=28+b/2

441/18*2 =28+b

49-28=b

b = 21