SOLUTION: Calculate the area of the triangle with the following vertices: (0,-9), (3,-9), and (0,-2) I believe the answer is 10.5 sq ft. I just want to know if that is correct, if so i k

Algebra ->  Quadratic-relations-and-conic-sections -> SOLUTION: Calculate the area of the triangle with the following vertices: (0,-9), (3,-9), and (0,-2) I believe the answer is 10.5 sq ft. I just want to know if that is correct, if so i k      Log On


   

Question 162321: Calculate the area of the triangle with the following vertices:
(0,-9), (3,-9), and (0,-2)
I believe the answer is 10.5 sq ft. I just want to know if that is correct, if so i know i have done it correctly.If not, I'd like to see the correct steps so i know what i did wrong. Thank you so much!
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
(0,-9), (3,-9), and (0,-2)
PLOT THESE THREE POINTS AND YOU'LL HAVE A RIGHT TRIANGLE WITH THRE FOLLOWING DIMENSIONS.
X DISTANCE=3-1=3 THIS IS THE BASE OF THE RIGHT TRIANGLE.
Y DISTANCE=9-2=7 THIS IS THE HEIGHT OF THE RIGHT TRIANGLE.
AREA=BH/2
AREA=3*7/2=21/2=10.5 IS THE AREA.