Question

11. The lengths of the parallel sides of a trapezium are in the ratio 4:7.
of trapezium is 14 m and its area is 385 sq. m. find the length of its parallel sides.​

Answer 1

Answer:

$area \: of \: trapezium = \frac{1}{2} (sum \: of \: parellel \: sides) \times h \\ 385 = \frac{1}{2} (4x + 7x) \times 14 \\ \frac{385 \times 2}{14} = 11x \\ 55 = 11x \\ x = \frac{55}{11} \\ x = 5 \\ first \: side = 4x = 4 \times 5 = 20 \\ second \: side = 7x = 7 \times 5 = 35$

Answer 2

Answer:

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