The vertices of a triangle are A (0, 0), B (3, 8), and C (9, 0). What is the area of this triangle?

Answer: 36 units squared.

Explanation:

Area of a traingle is given by,

| 0.5{x1 (y2-y3) + x2 (y3-y1) + x3 (y1-y2) } |

Accepting the values of the coordinates in x's and y's,

x1 = 0, y1=0

x2=3, y2=8

x3 = 9, y3=0

= | 0.5 * (-72) |

= 36 unit squared.

36

Step-by-step explanation:

(formula for area for coordinates geometry is applied)

1/2| (put in the coordinates tht they give u) |

1/2|-72|

1/2 (72)

=36