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Both questions please fast
Ques.2. A rhombus shaped field has green grass for 18 cows to graze. If each side of the rhombus is 30 m and its longer diagonal is 48 m, how much area of grass field will each cow be getting?
Ques.3. A field is in the shape of a trapezium whose parallel sides are 25 m and 10 m. The non parallel sides are 14 m and 13 m. Find the area of the field.

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 all sides are 30 m and one diagonal is 48 m 
then, draw the diagonals , now diagonals  bisect perpendicularly each other 
half the length of diagonal is 24m.
use pythagoras theorem for one small triangle =
root of 302 - 242 =  18 
then that diagonals length = 18 + 18 = 36 
area of rhombus = diagonal * diagonal / 2 
48 * 36 / 2 = 864m2 
area for grazing one cow = 864 / 18 = 48 m2
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