Find `lambda` if `(lambda , 2)` is an interior point of `Delta ABC` formed by ` x + y = 4, 3x-7y = 8` and ` 4 x - y = 31`

Find the values of the parameter a so that the point (a, 2) is an interior point of the triangle formed by the lines x+y-4=0, 3x-7y-8=0and 4x-y-31 = 0.

Find the values of the parameter a so that the point (a,2) is an interior point of the triangle formed by the lines x+y-4=0,3x-7y-8=0and4x-y-31=0

Find the area of the triangle formed by the lines y = x, y= 2x, y=3x+4

Find the area of the triangle formed by the lines y = x, y= 2x, y=3x+4

Find the orthocentre of the triangle formed by the lines 4x-7y+10=0,x+y=5 and 7x+4y=15 .

ABC is a variable triangle such that A is (1, 2), and B and C on the line y=x+lambda(lambda is a variable). Then the locus of the orthocentre of DeltaA B C is (a) x+y=0 (b) x-y=0 x^2+y^2=4 (d) x+y=3

ABC is a variable triangle such that A is (1, 2),and B and C on the line y=x+lambda(lambda is a variable).Then the locus of the orthocentre of Delta ABC is x+y=0 (b) x-y=0x^(2)+y^(2)=4( d )x+y=3

Find the orthocentre of the triangle formed by 4x-7y+10=0, x+y-5=0, 7x+4y-15=0 .

Find the value of lambda\ , if x=-lambda\ a n d\ y=5/2 is a solution of the equation x+4y-7=0

Find the value of lambda\ , if x=-lambda\ a n d\ y=5/2 is a solution of the equation x+4y-7=0