Unit 7 Practice Problems - Answer Key

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lesson 1Problem 1Here are questions about two types of . Responses vary. Sample responses: I used a protractor and measured; a square pattern block fits perfectly inside it; the corner of mynotebook paper fits perfectly inside it. 2. . Responses vary. Sample response: I drew a straight line, and a straight angle is an angle formed by a straight 2An equilateral triangle s angles each have a measure of 60 Can you put copies of an equilateral triangle together to form a straight angle? Explain or show your Can you put copies of an equilateral triangle together to form a right angle?

One way to find the answers to both questions is using a ratio table: distance (km) time (min) 21 10 63 5 31.5 1 6.3 Problem 6 (from Unit 6, Lesson 12) Jada, Elena, and Lin walked a total of 37 miles last week. Jada walked 4 more miles than Elena, and Lin walked 2 more miles than Jada. The diagram represents this situation:

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