Ask Question
6 March, 07:50

What is the area of a triangle whose vertices are D (3, 3), E (3, - 1), and F (-2, - 5) What is the area of the rectangle?

+2
Answers (1)
  1. 6 March, 08:15
    0
    The area of the triangle with the given vertices is 10 square units

    Step-by-step explanation:

    x y

    D 3 3

    E 3 - 1

    F - 2 - 5

    D 3 3

    Area: A=Abs [ (xd ye + xe yf + xf yd) - (yd xe + ye xf + yf xd) ] / 2

    Absolute value: Abs

    A = Abs { [ (3) (-1) + (3) (-5) + (-2) (3) ] - [ (3) (3) + (-1) (-2) + (-5) (3) ] } / 2

    A = Abs [ (-3-15-6) - (9+2-15) ] / 2

    A = Abs [ (-24) - (-4) ] / 2

    A = Abs (-24+4) / 2

    A = Abs (-20) / 2

    A = 20 / 2

    A = 10 square units
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “What is the area of a triangle whose vertices are D (3, 3), E (3, - 1), and F (-2, - 5) What is the area of the rectangle? ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers