Question

Find the area of ∆ ACD where A(2,7), C(6,15) and D(8,13).​

Answer 1

Step-by-step explanation:

By using Coordinate formula:-

Area of triangle :- 1/2×(x¹(y²-y³)+x²(y³-y¹)+x³(y¹-y²)

Answer 2

Answer:

10 units ²

Step-by-step explanation:

area = (2(15-13)+6(13-7)+8(7-15))÷2

area = (2²+6²+(-8²))÷2

area= (4+36-64)÷2

area=(-20)÷2

area=(20)÷2

.. since area is taken in absolute value in the last step the negative is negated

area is 10 unit²