Question

Area of trapezium 625 cm,hight of trapezium 25cm
1.find sum of length of 11 sides
2.length of other side of length of one side is 18cm

Answer 1

1)sum of parallel sides is 10
2)length of itger side is -8 . however the question iz wrong

Answer 2

Answer:

Sum of parallel side is 50 cm and length of required side is 32 cm.

Step-by-step explanation:

Given Area of trapezium = 625 cm² and height of trapezium = 25 cm

To find: Sum of Length of parallel sides and Length of other side if a side is 18 cm

We know that Area of trapezium = half of height × Sum of parallel sides

$625=\frac{1}{2}\times25\times(Sum\:of\:Parallel\:Sides)$

$Sum\:of\:Parallel\:Sides=\frac{625\times2}{25}$

$Sum\:of\:Parallel\:Sides=25\times2$

$Sum\:of\:Parallel\:Sides=50$

Sum of parallel sides = 50

let x be the length of side.

18 + x = 50

x = 50 - 18

x = 32

Therefore, Sum of parallel side is 50 cm and length of required side is 32 cm.