Area Compound Shapes Worksheet Answer Key Mathworksheets4kids S1 1) area = 2) area = 3) area = 4) area. Surface area and volume worksheet 2 pages with 3 quizzes and keys for everything also has 3 pages of volume worksheets area and perimeter area worksheets. 6) surface area = 643.7 in. Round the answer to 2 decimal places if necessary. Mr puff s mathemaddicts shapes worksheets area worksheets worksheets.