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GEOMETRY REVIEW #2 NAME: DATE: Part I. Fill in the blank. Use the word bank below to help you! 1. A (n) _______________triangle has two sides that are congruent in length. 2. A triangle with one angle measuring 100 would be called a (n) ________________ triangle. 3 Two angles are ___________________ , if the sum of their measures equal 90. WORD BANK: acute obtuse supplementary complementary right polygon isosceles scalene equilateral supplementary Part II. True or False. If false, change the statement so that it is true. 4. ____________________ All scalene triangles have 3 congruent sides. 5. _________________ Perpendicular lines intersect. 6. __________________ A line has two endpoints. 7. __________________ All lines that do not intersect are parallel. Write the triangle side lengths in order from least to greatest. Then tell if the three side lengths can form a triangle. 8.) 12 cm, 13 cm, 15 cm 9.) 6 m, 3m, 3m 10.) 5 in, 1 in, 3 in Part III. Use geometry notation to identify each figure: 11.) 2 points ______________________ 12.) 3 rays ________________________ 13.) 2 lines _______________________ 14.) 2 segments ____________________ 15.) 1 acute angle _________________ 16.) 1 obtuse angle ________________ 17.) A pair of parallel lines ____________________________ Part IV. Use the diagram below to name a pair of each type of angle. 18.) Vertical angles _____________________ 19.) Supplementary angles ________________ Part V. Find the measurement of each angle. 20.) m1 = ____________________ 1 29 21.) m2= ____________________ 76 2 22.) mx = ____________________ 24.) m3 = _________________ 23.) x = ______________ y = _____________ m4 = _________________ m5 = ______________ m6 = _____________ m7 = _________________ m8= ______________ m9= ______________ 53o 4 5 6 8 25.) ______________________ 7 9 3 26.) Use the diagram to name a pair of skew lines. _______________________________________ 27.) Use the diagram to name a pair of parallel lines. _______________________________________ 28.) Use the diagram to name a pair of perpendicular lines. _______________________________________ 29.) Draw a right isosceles triangle. Be sure to use hash marks were necessary. Use the diagram to the right to find the measure of the following angles. 30.) m CGD = _____________________ 31.) m BGA = _____________________ 32.) m BGE = _____________________ 33.) What kind of angle is AGF? ________________ Write and solve an equation to find the measure of the unknown angles in each triangle. Show all steps! 34.) m a =___________ 35.) m x =___________ Write an equation to find the value of x and find the missing angles. 36.) x = ________________________ Equation and work: = _______________________ 37.) Write an equation to find the value of x and find the missing angles. Equation and work: x = _____________________ ____________________ _______________