Surface Area - combined straight edge objects – Practice ProblemsHaving fun while studying, practice your skills by solving these exercises!

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The sum of the areas of the faces of a 3D shape is called its surface area. A knowledge of getting the area of faces of 3D shapes is very useful in areas where spatial awareness is important like architecture, engineering, science, arts, games, and in many aspects of everyday life. A proficiency in calculating the surface area plays a major role in chemical kinetics since there is a direct relationship between the surface area of the reactants and the rate of a chemical reaction. Learn how to calculate the surface area of some 3D shapes by helping Calvin, who’s home alone for the day, set up a flypaper trap on the roof and cover the front steps with super slippery soap in an attempt to burglar-proof their house. Common Core Reference: CCSS.MATH.CONTENT.7.G.B.6

Exercises in this Practice Problem
 Find the surface area of the square pyramid. Calculate the surface area of the staircase. Determine the surface area of the triangular prism. Identify the formulas for surface areas of the different shapes. Recall the area formulas for a triangle and rectangle and find the areas of the ones displayed. Figure out the surface area of the sculpture.