Area of the triangle with vertices A (-5,0), B (3,0) and C (-1,4) is ?
Please answer correctly and fastly with Full Process.
Ch- Coordinate Geometry
Class10 Mathematics
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Answer:
correct option is c
Step-by-step explanation:
the area of the ∆ABC with vertices
A (×1, y1 ) = ( 3 , 0 ) , B ( ×2 ,y 2 ) =
( 7, 0 ) and C ( x3, y3 ) = ( 8,4 ) is
Ar . ∆ ABC =
21 [ X1 ( y2 - y3 ) + ×2 ( y3 - y1) + x3 ( y1 - y2 )
= 21 {3 (0-4) +7 (4-0) + 8 (0-0) }
sq. units = 8 sq units
hence option c
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