A website that gives surface area problems and answers?

i have been igned a school math project and one of the tasks that i need to do is find a worksheet that i can print off. i need this worksheet to be only about 5 problems long but i will take anything available and edit it to what i need. this needs to cover the surface area of rectangular and triangular prisms. no pyramids, cones, ext. i have looked at a few teacher recourses but to use them you have to pay to become a member. im only a freshman i have no need for a membership to a teacher website. also i have found many problems online but i have to have an answer key to go along with them. i need any and all help i can get, i have to have this project complete by tuesday. thanks so much! -rachel