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Q.

Plot the points O (0,0) A (2,2) and C (3,0) on graph paper and join these points. Name the type of triangle obtained and find its area.


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a

Question Image

b

Question Image

c

Question Image

d

Question Image 

answer is A.

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Detailed Solution

 We use the formula of area of triangle:
Question ImageGiven points are: Question ImageFirstly we will plot the graph, mark O(0,0) as 0 on the x axis and also 0 on the y axis which represents O.
Then mark A(2,2) as 2 on the x axis and also 2 on the y axis which represents A.
And at last mark C(3,0) as 3 on the x axis and 0 on the y axis which represents C.
Graph:
 Question Image Question Image:
 Question Image Now, we will calculate the area of triangle: Question ImageQuestion ImageHence, the area of ΔOAC = 3sq.units.
 
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