Hi, can you please help to explain the following questions?

$ Domestic Supply 14 8 6 Price-World + Tariff 3 World Price Demand 10 40 60 80 100 Widgets (a) Refer to above figure. What is the loss of Consumer Surplus due to the tariff? (b) Refer to above figure. In the absence of a tariff and in the presence of trade, what is the country's consumer surplus? (c) Refer to above figure. What is the amount of efficiency loss resulting from imposition of the tariff? (d) Refer to above figure. What is the amount of government revenue resulting from imposition of the tariff