Question

9. The cross-section of a canal is in the form of a trapezium. If the top of canal is 15m
wide, the bottom is 8 m and the area of cross-section is 138 m², find its depth.
10. Two parallel sides of a trapezium are 58 cm and 42 cm. The other two sides are o
equal length which is 17 cm. Find the area of trapezium.
11. The lengths of the parallel sides of a trapezium are in the ratio 4:7. If the height
of trapezium is 14 m and its area is 385 sq. m, find the length of its parallel sides
12. The perimeter of a trapezium is 104 m, its non-parallel sides are 18 m and 22
and its altitude is 16 m. Find the area of trapezium.​

Answer 1

the pic for 9th sum

thanks