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10-1 Solve It! You can combine triangles to make just about any shape! A stage is being set up for a concert at the arena. The stage is made up of blocks with tops that are congruent right triangles. The tops of two of the blocks, when put together, make an 8 ft-by8 ft square. The band has requested that the stage be arranged to form the shape of an arrow. Draw a diagram that shows how the stage could be laid out in the shape of an arrow with an area of at least 1000 ft2 but no more than 1400 ft2. 8 ft 8 ft 10-1 Lesson Quiz 8.5 cm 1. What is the area of the parallelogram? 2. Do you UNDERSTAND? A triangular 11.4 cm window pane is 4 feet 8 inches wide and 3 feet 6 inches high. What is the area of the window pane? Round to the nearest tenth square foot if necessary. 3. What is the area of the figure below? 11 in. 3 in. 3 in. 5 in. 15 in. Answers hsm11gmse_1001_FPL2.indd 616 2/13/09 3:43:37 AM Solve It! Lesson Quiz 1. 96.9 cm2 2. about 8.2 ft2 3. 102 in.2 Answers may vary. Sample: Prentice Hall Geometry • Solve It/Lesson Quiz on Transparencies Copyright © by Pearson Education, Inc., or its affiliates. All Rights Reserved. 63