the area of quad abcd with a(1,1),b(7,-3),c(12,2)&d(7,21) as its vertics is
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Hey mate,
First of all Draw one diagonal than you will get two ∆ . than Use the area formula
area(∆) = 1/2 { x1 ( y2-y3 ) + x2 ( y3-y1) + x3 ( y1-y2) }
If your answer is negative than use abssolue
for example:- |-14| = 14
hope it will help you
Mark it as brainlist
First of all Draw one diagonal than you will get two ∆ . than Use the area formula
area(∆) = 1/2 { x1 ( y2-y3 ) + x2 ( y3-y1) + x3 ( y1-y2) }
If your answer is negative than use abssolue
for example:- |-14| = 14
hope it will help you
Mark it as brainlist
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