In this great addition to the MATH BUSTERS WORD PROBLEMS series, veteran math author Rebecca Wingard-Nelson teaches students how to conquer tricky geometry word problems using examples from a teen’s modern life. Word problems don’t have to be a problem! Free downloadable worksheets available for this book on www.enslow.com.

oblique, 10 parallel, 12–13 perpendicular, 10–11, 13 skew, 12 linear pair, 22, 24 line segment, 8 line of symmetry, 86–87 M mental math, 39 multiple choice questions, 7, 11, 15, 21, 23, 27, 33, 37, 39, 43, 47, 55, 59, 67, 83, 79, 81, 83, 87, 93, 95, 99 O octagon, 57 open figure, 30 ordered pairs, 95 origin, 94, 97 P parallelogram, 46–47, 50 percent equation, 77 perimeter, 58–61 pi, 78 plane, 8 plane figure, 30 points, 6 plotting, 96–97 point of intersection,

polygon, 30–33 angle sums, 54–57 concave, 32 convex, 32 names, 33 regular, 31 powers, 42 proportions, 93 Pythagorean Theorem, 44–45 Q quadrants, 94 quadrilateral, 46–49 angle sum, 48 R radius, 74–75 ray, 8–9 rectangle, 46–47, 50, 53 rhombus, 46–47, 50–51 S sector, 74, 76–77 show your work questions, 9, 19, 24, 35, 40, 45, 51, 56, 61, 63, 68, 71, 76–77, 84, 91, 100–101 similar, 92–93 square, 46, 52 square units, 62 symmetery, 86–89 line, 86–87, 89 rotational, 86,

TEST TIME: Multiple Choice Which of the following is NOT a way to name the line shown? Lines can be named by any two points on the line. Answer a uses the word line and two points. Answer d uses the symbol for line and two points. Both of these are correct. A line can also be named using a lowercase letter. Answer b uses the lowercase letter f. Answer c is not a correct way to name a line. Solution: The correct answer is c. * * * Test-Taking Hint Multiple choice questions

Hint Pay more attention to the question you are working on than to the amount of time left for the test. Complete Circle The measure of angle 1 is 18°. Find the measure of ∠ 2, ∠ 3, and ∠ 4. What is the sum of all four angles? Step 1: Angles 1 and 2 are a linear pair. Find the measure of angle 2 by subtracting the measure of angle 1 from 180°. 180° – 18° – 162º The measure of ∠ 2 is 162°. Step 2: Angles 1 and 3 are vertical angles. Vertical angles are congruent. The measure of

are also equiangular. They have three congruent angles. isosceles triangle: A triangle with exactly two congruent sides. scalene triangle: A triangle with no congruent sides. Test-Taking Hint Small hatch marks and arcs are used to show that sides or angles are congruent. Test-Taking Hint Knowing the names of angles (acute, right, and obtuse) will help you remember the names of triangles. * * * TEST TIME: Multiple Choice Classify ∆ ABC by angle measure and by side