Question

1)Area of the triangle whose vertices are (a, b + c),(a, b -c) and (-2, c) is (a>0, b>0,c>0) is
a)a square
b) 2ab
c)2ac
d) 2bc

2)The four vertices of a quadrilateral are (1, 2), (-5,6), (7, -- 4) and (k, - 2) taken in order. If the area
of the quadrilateral is 18 sq. units, then k is equal to
a)0
b) 2
C) -3
d)4​

Answer 1

Answer:

)The four vertices of a quadrilateral are (1, 2), (-5,6), (7, -- 4) and (k, - 2) taken in order. If the area

of the quadrilateral is 18 sq. units, then k is equal