CBSE Class 9 Answered
co-ordinategeometry
Asked by | 15 Jun, 2009, 05:24: AM
Expert Answer
let the line ax+by=ab meet the x and y axes in A and B respectively.
We see that it intersects the x axis in (a,0)... [substutue y=0 in the equationof theline and you get this point.]
and
the y axis in (0,b)....[ pt x=0 in the equation of the line to get this point]
Let O be the origin
So the distance OA= a units
and
OB= b units.
in right triangle OAB,
arera of OAB=
(1/2)*(base)*(altitude)=(1/2)(a)(b)=ab/2
Answered by | 15 Jun, 2009, 08:21: AM
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