CHAPTER Surface Area - School District #35

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Name: _____________________________________________________ Date: ______________ 1. Write the steps that you could use to find the surface area of a prism. 2. Find the surface area of the rectangular prism to the nearest tenth of a square centimetre (1 decimal place). front or back top or bottom 18 cm ends 10 cm 5.5 cm cm cm cm cm cm cm A = l × w = × = Area of front and back: A = × 2 = A = l × w = × = Area of top and bottom: A = × 2 = A = × = × = Area of 2 ends: A = × = Surface Area = (area of front and back) + (area of top and bottom) + (area of ends) = + + = cm 2 The surface area of the right rectangular prism is cm 2 . 250 MHR ● Chapter 5: Surface Area
Name: _____________________________________________________ Date: ______________ 3. Find the surface area of this ramp in the shape of a right triangular prism. 3 m 5 m 4 m 0.7 m ramp rectangle bottom rectangle end rectangle 0.7 m 5 m 0.7 m 4 m 0.7 m 3 m A = l × w = × = m 2 triangle m A = (b × h) ÷ 2 = ( × ) ÷ 2 = ÷ 2 m = m 2 Surface Area = (area of 3 rectangles) + (2 × area of triangle) = ( + + ) + (2 × ) = + = The surface area of the ramp is m 2 . 5.3 Surface Area of a Prism ● MHR 251
Page 1 and 2: CHAPTER 5 Surface Area GET READY 22
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CHAPTER Surface Area - School District #35

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