Please help!!!!!!!!!!!!!!
1 answer:
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let's say
A(-3,1) B(-3,5) C(4,1)
we need to find the perimeter of ABC for that we find each of the sides
AB BC and AC
there is a formula to find the distance between 2 poins
let's say that a point has the structure A(x1,y1) where x=-3 and y=1 and B(x2,y2) where x2=-3 and y2=5
AB=
AB=
AB=
AB=4
we do the same thing for AC and BC
AC=
AC=
AC=7
BC=
BC=
BC=
BC=
The perimeter is equal to the sum of the sides
P=AB+AC+BC=4+7+=11+
Answer:
The intersection point of diagonals is (0.5,-4.5).
Step-by-step explanation:
The end points of first diagonal are p(-3, -2) and i(4, -7).
The end points of second diagonal are a(4, -2) and d(-3, -7).
If a line passing through two points, then the equation of line is
The equation of first diagonal is
.... (1)
The equation of second diagonal is
.... (2)
Add equation (1) and (2),
Put this value in (1).
The intersection point of diagonals is (0.5,-4.5).
