Question

Area of triangle p(1 3) q-(1 0) r(4 0) in coordinate geometry

Answer 1

Answer:

Ar ΔPQR=1/2[x1(y2-y3)+x2(y3-y1)+x3(y1-y2)]

1/2[1(0-0)+-1(0-3)+4(3-0)]

1/2[0+3+12}

1/2*15

7.5 sq units

Answer 2

Answer:

Step-by-step explanation:area of a triangle is1/2×base×height

Here base = 5 units

And height = 3 units

Area = 1/2×5×3

=7.5 units