SOLUTION: Q.4: A trapezium with vertices A(t,0),B(t+2,0),C(t+2,3t+2) and D(t,2t+1), where t>0, has an area of 18 square units.Find the value of t.

Question 214197: Q.4: A trapezium with vertices A(t,0),B(t+2,0),C(t+2,3t+2) and D(t,2t+1), where t>0, has an area of 18 square units.Find the value of t.
Answer by Edwin McCravy(20060) (Show Source): You can put this solution on YOUR website!




The equation for the area of a trapezium (In the US, it's
called a "trapezoid") is:

, where  and 
are the two parallel sides, and  is the perpendicular
distance between them.

In this problem, , , ,


Substitute these into 

, 



Can you solve that equation? If not post again asking how.

When you solve it you'll get answer  

Edwin

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