Question

If the area of ​​the triangle with vertices (a, 5), (6,7) and (2,3) is 10, a = _______ (a> 0).​

Answer 1

Answer:

answer:- a=9

Step-by-step explanation:

area of triangle= 1/2(xone( y two -y three) + x two( y three - y one )+ xthree ( y one - y two)

= 10 = 1/2 ( a(7-3)+6(3-5)+2(5-7))

=10×2=7a-3a+6(-2)+2(-2)

=20=4a-12-4

=20=4a-16

=20+16=4a

=4a=36

=a=36/4

=a=9