plot the points a(-3,0), b(4,1), and c(2,5) on graph paper hence, determine the area of triangle abc
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area of triangle=
1/2|x1(y2-y3)+x2(y3-y1)+x3(y1-y2)
=1/2|(-3)(-4)+(4)(5)+(3)(-1)
=1/2|12+20-3||
=1/2|29|
=1/2×29
=14.5
Ritiksuglan:
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hey mates your answer is here
Plotting of points in the cartesian plane: ... 1. Point (–3, 5) lies in the. (A) first quadrant. (B) second quadrant. (C) third quadrant ... If P (5, 1), Q (8, 0), R (0, 4), S (0, 5) and O (0, 0) are plotted on the ...
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