Question

Find the area of a triangle whose vertices are A( 2,3),B(4,5) and C (1,5)

Answer 1

firstly calculate the distance then find the area using herons formulae

Answer 2

Answer:

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Step-by-step explanation:

i)

GIVEN:

Let A(2,3), B(−1,0) and C(2,−4) are the vertices of △ABC

Area of triangle=21[x1(y2−y3)+x2(y3−y1)+x3(y1−y2)]

Here (x1,y1)=(2,3)

(x2,y2)=(−1,0)

(x3,y3)=(2,−4)

=21[2(0+4)−1(−4−3)+2(3−0)]

=21[8+7+6]

=221 sq.unit