Question

if the area is there any of a triangle formed by the points (k, 0 ), (3,4) ,(5,2) is 10sq units,then the value of k
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Answer 1

Step-by-step explanation:

area of the tiangle =10sq

points=(k,0),(3,4),(5,2)

formulaa

∆=1/2|X1(y2-y3)+X2(y3-y1)+x3(y1-y2)|

(k,0)=(X1,y1)

(3,4)=(X2,y2)

(5,2)=(x3,y3)

substitut 10. =1/2|k(4-2)+3(2-0)+5-(0-4)|

=1/2|k×2+3×2+9|

=1/2|k×2+15|

10-15=1/2|k×2|

-5 =1/2×k×2

= k×1

-5/1=k

K=-5

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