Use quadrilateral QUAD for # 1 8. – Q (-2, 1) A (3, 1) U (2, 3) D (-1, -1) 5. Find the length of QU. From -2 to 2 is 4 spaces, from 1 to 3 is 2 spaces. 42 + 22 = d2 square root of 20. The length of QU is the 6. Find the midpoint of UA (2.5, 2) (Average!) 3 + 2 = 5 5 / 2 = 2.5 1 + 3 = 4 4 / 2 = 2 7. Find the length of the diagonal QA. 8. Find the midpoint of diagonal UD From -2 to 3 is 5 spaces, from 1 to 1 is 0 spaces. (Average!) -1 + 2 = 1 1 / 2 = .5 52 + 02 = d2 -1 + 3 = 2 2 / 2 = 1 5 (.5, 1) The length of QU is the . For # 9 & 10, = ΔABC ΔDEF. 9. Which is the largest < in 10. Which is the shortest side in ΔABC? ΔDEF? 2x + 3 = 3x 2 2x 10 = x + 25 – – 5 = x x = 35 DE =3(5) 2 = 13 m<A = 2(35) 10 = 60 – – EF = 4(5) 1 = 19 m<B = 35 + 15 = 50 – DF = 6(5) 6 = 24 m<C = 2(35) = 70 – DF is the longest side, so E is the largest < in <B is the smallest < in AC is the shortest ΔDEF. ΔABC, (Flashlight) <B corresponds to <E, so side. (Flashlight) DF corresponds to AC, so <B is the largest < in AC is the shortest side in ΔABC ΔDEF
Use quadrilateral QUAD for # 1 – 8. Q (-2, 1) A (3, 1) U (2, 3) D (-1, -1) 5. Find the length of QU. From -2 to 2 is 4 spaces, from 1 to 3 is 2 spaces. 42 + 22 = d2 The length of QU is the square root of 20. 6. Find the midpoint of UA (Average!) 3 + 2 = 5 5 / 2 = 2.5 1 + 3 = 4 4 / 2 = 2 (2.5, 2) 7. Find the length of the diagonal QA. 8. Find the midpoint of diagonal UD From -2 to 3 is 5 spaces, from 1 to 1 is 0 spaces. (Average!) -1 + 2 = 1 1 / 2 = .5 52 + 02 = d2 -1 + 3 = 2 2 / 2 = 1 The length of QU is the 5 . (.5, 1) For # 9 & 10, ΔABC = ΔDEF. 9. Which is the largest < in ΔABC? 10. Which is the shortest side in ΔDEF? 2x + 3 = 3x – 2 2x – 10 = x + 25 5 = x x = 35 DE =3(5) – 2 = 13 m<A = 2(35) – 10 = 60 EF = 4(5) – 1 = 19 m<B = 35 + 15 = 50 DF = 6(5) – 6 = 24 m<C = 2(35) = 70 DF is the longest side, so E is the largest < in ΔDEF. <B is the smallest < in ΔABC, AC is the shortest (Flashlight) <B corresponds to <E, so side. (Flashlight) DF corresponds to AC, so <B is the largest < in ΔABC AC is the shortest side in ΔDEF
Review_for_quiz_10_answers.docx