lockshernostaw
lockshernostaw lockshernostaw
  • 01-12-2017
  • Mathematics
contestada

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

Respuesta :

zizoux07p0ac3m
zizoux07p0ac3m zizoux07p0ac3m
  • 01-12-2017
I will solve it using vectors
vector(SR)=(-5,0)
vector(ST)=(-6,-6)area equals half the cross product of these vectors
A = 1/2(30-0)=15 square units

Answer Link

Otras preguntas

(-7x^2+3) + (4x^2+2x-1); Find the sum or difference.
What pigments are responsible for the color of skin?
When we combined baking soda and vinegar in a closed jar and lid had the same mass before and after they were combined and mixed together. what law best explain
the area of a square is 81 in 2. what is the perimeter of the square
The outsider short story . Explain whether your understanding of the narrator added to the story s suspense
In which of the following ways did the mongol conquests affect China
Which mixture separates into layers over time? A.a solution B.a suspension C.a colloid
In 1763, the british crown declared american indian tribes to be
How to find the correlation coefficient khan academy?
In "Mother Tounge" how does Amy tan demonstrate language bias toward her mother