Ask Question
15 July, 20:12

A triangle in the xy-coordinate plane has vertices with coordinates (7, 0), (0, 8), and (20, 10). what is the area of this triangle

+2
Answers (1)
  1. 15 July, 21:10
    0
    A (7,0)

    B (0,8)

    C (20,10) ⇒ A (ABC) = 1/2 | det (7 0 1) | =

    0 8 1

    20 10 1

    7 0 1

    0 8 1

    = 1/2 |7*8*1+0*10*1+20*0*1 - 20*8*1-7*10*1-0*0*1 |=1/2*|-174|=1/2*174

    A (ABC) = 87 units
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “A triangle in the xy-coordinate plane has vertices with coordinates (7, 0), (0, 8), and (20, 10). what is the area of this triangle ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers