Please help thank you!

The market for Good X is depicted below. L-Iarkct for Good X Q Where P0 = $5,959 2 $8, P511 2 $11, 12*: $14,133,] = $16, 1,3,0 2 $123131 2 $20,120 = 40,01 = so, and Q*=120. Suppose there is a $10 per unit transaction oust. If an intermediary enters the market and reduces the transaction cost to $5 per unit, by how much did this intermediary affect the triangular area representing dead weight loss