Grade 12Analytical Geometry
The area of the triangle formed by the lines y=ax, x+y-a=0 and the y-axis is equal to?
The area of the triangle formed by the lines y=ax, x+y-a=0 and the y-axis is equal to?
1 Answer
AKASH GOYAL AskiitiansExpert-IITD
Approved Tutor Answer15 Years agoDear Sohan
Find the point of intersection of lines y=ax, x+y-a=0, x=0
points are (0,0),(0,a) and (a/1+a, a2/1+a)
use formula for area
A = 1/2[x1(y2-y3) + x2(y3-y1) + x3(y1 - y2)]
A= a2/2(1+a)
All the best.
AKASH GOYAL
AskiitiansExpert-IIT Delhi
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