Question

What is the area of a triangle whose vertices are R(−4, 2) , S(1, 2) , and T(−5, −4) ?

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________ units²

Answer 1

The answer is 15 units².

Explanation:

I am a hundred percent sure. I did the math and got it right on my test.

Answer 2

That triangle has a horizontal base with y=2. The length of that base is RS=1-(-4)=1+4=5. The height of the triangle is the vertical distance from line y=2 to T(-5,-4). That height is 2-(-4)=2+4=6. The area of the triangle is base * height/2 = 5*6/2= 15

The answer is 15 units ^2