Question 1055997
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find the area of the triangle formed by joining the mid-point of the sides of the triangle whose vertices are (0,-1), (2,1) and (0,3). 
Find the ratio of this area to the area of the triangle. 
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The basic (larger) triangle has the base of the length 4 (between the first and the third points) and the height of 2 unit.


So its area is {{{(1/2)*4*2}}} = 4 square units.


The smaller triangle's area is {{{1/4}}} of the area of larger triangle, i.e. 1 square unit.