In a four sided Field , the length of the longer diagonal is 120 m.The lengths of perpendiculars from the opposite vertices on the diagonal are 20 m and 15 m. find the area of the field.
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Answered by
11
Let ABCD be the field and AC be it's longer diagonal.
Let BL perpendicular AC and DM perpendicular AC. Then ,
AC = 120 m , BL = 20 m
And, DM = 15 m
Area of the field = [ 1/2 × ( BL + DM ) × AC ] c
m².
=> ( 1/2 × ( 20 + 15 ) × 120 m².
=> 2100 m².
Let BL perpendicular AC and DM perpendicular AC. Then ,
AC = 120 m , BL = 20 m
And, DM = 15 m
Area of the field = [ 1/2 × ( BL + DM ) × AC ] c
m².
=> ( 1/2 × ( 20 + 15 ) × 120 m².
=> 2100 m².
Answered by
14
Diagonal is = 120m
I Attitude on the diagonal. = 20m
I Attitude on the diagonal = 15m
Area of the Quadrilateral field = 1/2 (Diagonal x Sum of attitude on a diagonal drawn from other vertices)
So The area of field is 2100 square meter
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