Question

5. (9, a), (6, 7). (2, 3) are the coordinates of the vertices of a triangle. If the area of the triangle is
10, find a.​

Answer 1

Answer:1\2(x1(y2-y3)+x2(y3-y1)+ x3(y1-y2)

1\2(9(7-3)+6(3-a)+2(a-7)

1\2(36+4-4a)

40-4a=20

a=5

Step-by-step explanation:

Answer 2

Answer:

5 is the answer hope it helps you ☺☺