SOLUTION: If T (2,1), H(2,5) and R(-1.2) are the vertices ofbtrianhke THR. What is it’s area?

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Question 1145106: If T (2,1), H(2,5) and R(-1.2) are the vertices ofbtrianhke THR. What is it’s area?
Answer by ikleyn(52813) About Me  (Show Source):
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If T (2,1), H(2,5) and highlight%28cross%28R%28-1.2%29%29%29 R(-1,2) are the vertices highlight%28cross%28ofbtrianhke%29%29 of triangle THR. What is its area?
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This triangle has the vertical side ("the base")  TH  of the length 5-1 = 4


and the height of the length 2 - (-1) = 2 + 1 = 3.


The area of the triangle is  %281%2F2%29%2A4%2A3 = 2*3 = 6 square units.