Question

5. Find the area of the triangle formed by the points by using Heron's formula.

(2,3), (-1,3) and (2, -1​

Answer 1

Step-by-step explanation:

A= 2,3 , B= -1,3 and C= 2,3

now use distance formula between A and B,

B and C , C and A

now using herons formula

S= ab+ bc+ca/2. [ab = c, bc =a, ca=b ]

now you can find s value

substitute

in

area = √ s(s-a) ( s-b) (s-c)

sole this you can get the that is area of triangle

I hope this can help you

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