The average fluid temperature T
ˉ
over the heated plate is given by the double integral T
ˉ
= A
1
​
∬ R
​
T(x,y)dxdy (i) The triangular plate has three corners with coordinates (0,−1),(−C,1), and (D,1). Insert the value of YOUR parameters C and D to obtain the vertices of the plate and compute its area A. [10] (ii) Sketch the domain of the heated plate and write down the equations of the two nonvertical sides. [10] (iii) With YOUR temperature function from Question 1(i), determine the average fluid temperature over the heated plate. [70] PERAMETRES =C=7D=4