Activity of class 10th To verify the formula for area of triangle by graphical method. coordinates A(1,1) ,B(5,4),C(6,0)
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Answer:
-9. 5
Step-by-step explanation:
x1 y1 x2 y2 x3 y3
(1 , 1) (5 , 4) (6 , 0)
FORMULA for Area Of Triangle
½[ x1(y2-y3) + x2(y3-y1) + x3(y1-y2) ]
½[1(4-0) +5(0-1) +6(1-4) ]
½[1(4) +5(-1) +6(-3) ]
½[4+(-5) +(-18) ]
½[-19]
-19/2
-9.5
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