Question 1145106
.
If T (2,1), H(2,5) and {{{highlight(cross(R(-1.2)))}}}  R(-1,2) are the vertices {{{highlight(cross(ofbtrianhke))}}} <U>of triangle</U> THR. What is <U>its</U> area? 
~~~~~~~~~~~~~~~~~



<pre>
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  {{{(1/2)*4*3}}} = 2*3 = 6 square units.
</pre>