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Regents Exam Questions CC.G.GMD.4: Rotations of Two-Dimensional Objects Page 1 www.jmap.org Name: __________________________________ CC.G.GMD.4: Identify the shapes of two-dimensional cross-sections of threedimensional objects, and identify three-dimensional objects generated by rotations of twodimensional objects. 1 Which object is formed when right triangle RST shown below is rotated around leg 1) 2) 3) 4) ? a pyramid with a square base an isosceles triangle a right triangle a cone 2 If the rectangle below is continuously rotated about side w, which solid figure is formed? 1) 2) 3) 4) pyramid rectangular prism cone cylinder Regents Exam Questions CC.G.GMD.4: Rotations of Two-Dimensional Objects Page 2 www.jmap.org Name: __________________________________ 3 Triangle ABC represents a metal flag on pole AD, as shown in the accompanying diagram. On a windy day the triangle spins around the pole so fast that it looks like a threedimensional shape. Which shape would the spinning flag create? 1) sphere 2) pyramid 3) right circular cylinder 4) cone Regents Exam Questions CC.G.GMD.4: Cross-Sections of Three-Dimensional Objects www.jmap.org 1 ANS: 4 2 ANS: 4 3 ANS: 4 REF: 061501geo REF: 081503geo REF: 010417a