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GT Geometry Drill 3.12 2/9/12

GT Geometry Drill 3.12 2/9/12. 1. KB = 21.9 and MF = 32.7. Find FB. FB = 10.8. 2. Find m  F. m F = 131°. Check It Out! Example 3b. 3. JN = 10.6, and NL = 14.8. Find KM. KM = 10.6 + 14.8 = 25.4. 4. Find the value of a so that PQRS is isosceles.

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GT Geometry Drill 3.12 2/9/12

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  1. GT Geometry Drill 3.12 2/9/12 1. KB = 21.9 and MF = 32.7. Find FB. FB = 10.8 2. Find mF. mF= 131°

  2. Check It Out! Example 3b 3. JN = 10.6, and NL = 14.8. Find KM. KM = 10.6 + 14.8 = 25.4 4. Find the value of a so that PQRS is isosceles. a = 9 or a = –9

  3. 5. AD = 12x – 11, and BC = 9x – 2. Find the value of x so that ABCD is isosceles. x = 3 6. Find the value of x so that PQST is isosceles. x = 4 or x = –4

  4. The midsegment of a trapezoidis the segment whose endpoints are the midpoints of the legs. In Lesson 5-1, you studied the Triangle Midsegment Theorem. The Trapezoid Midsegment Theorem is similar to it.

  5. Example 5: Finding Lengths Using Midsegments Find EF. EF = 10.75

  6. Check It Out! Example 5 Find EH. 8= EH

  7. Lesson Quiz: Part I 1. Erin is making a kite based on the pattern below. About how much binding does Erin need to cover the edges of the kite? In kite HJKL, mKLP = 72°, and mHJP = 49.5°. Find each measure. 2. mLHJ 3. mPKL about 191.2 in. 81° 18°

  8. Lesson Quiz: Part II Use the diagram for Items 4 and 5. 4. mWZY = 61°. Find mWXY. 5.XV = 4.6, and WY = 14.2. Find VZ. 6. Find LP. 119° 9.6 18

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