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Geometry/Trig 2 Name: ____________________________________ Chapter 8 Exam Review Date: ____________________________________. Section 1 – Simplify the following radicals. 1.) 2.) 3.) 4.) 5.) 6.) 7.) 8.) 9.) . Answers: 1.) 45 2.) 5/6 3.) 4.) 5.) 6.) 7.) 3
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Geometry/Trig 2 Name: ____________________________________ Chapter 8 Exam Review Date: ____________________________________ Section 1 – Simplify the following radicals. 1.) 2.) 3.) 4.) 5.) 6.) 7.) 8.) 9.) Answers: 1.) 45 2.) 5/6 3.) 4.) 5.) 6.) 7.) 3 8.) 20 9.) 3/4 Section 2 – Calculate the geometric mean or extreme value. 10.) Calculate the geometric mean between 2 and 8. 10.) 4 11.) Calculate the geometric mean between 6 and 24. 11.) 12 12.) 14 is the geometric mean between 3 and x. Find x. 12.) 65.33 13.) 6 is the geometric mean between 12 and y. Find y. 13.) 3 Section 3 – Right Triangle Strategies Strategy 1:Alt to hypotenuse properties Strategy 2:Pythagorean Theorem hyp part 1alt alt hyp oart 2 Strategy 3:Special Right Triangles Strategy 4:SOH-CAH-TOA
Geometry/Trig 2 Name: ____________________________________ Chapter 8 Exam Review – page 2 Date: ____________________________________ 16 12 12 Section 4 - Directions: Calculate the value of each indicated variable. Choose the correct strategy to complete each problem. Show all work on a separate sheet of paper and place answers on the lines provided. Leave answers in radical form when necessary. Round all decimal answers to the nearest tenth. 1.) 2.) x = __4________ y = ____ 2√5____ z = ____ 4√5 ___ x = __30_______ y = _ 17.3_______ z = ___8.7______ x° y 15 60° z 3.) 4.) x = ___53_____ y = ____10______ x = __ 6√2 _____ y = _ 3√2_______ y y 6 8 x° 45° 5 x 12 5.) The diagonals of a rhombus have lengths of 12 6.) A rectangle have a length of 2.4m and width of 0.7m and 16. Calculate the perimeter of the rhombus. Calculate the perimeter and length of diagonal. 2 perimeter = __40______ diagonal = ____2.5____ perimeter = ___6.2_____ y y 10 8 7.) 8.) If the side of an equilateral triangle is 21, calculate length of the altitude. y x = ______18__ y = ____ 2√10__ z = _____ 6√10_ y x x z 6 45° z z x 2 altitude = ___ 10.5√3 ___ 9.) 10.) x 45° 30° x° x° z y y x = ____20______ y = ____ 10√3___ z = ___10_______ x = ____60____ y = _____6____
Geometry/Trig 2 Name: ____________________________________ Chapter 8 Exam Review – page 3 Date: ____________________________________ Section 5 - Directions: Calculate the missing pieces of the special right triangles. Remember the equations! c c b b 60° 45° a a • Section 6 - Directions: Complete the following applications of right triangle trigonometry. Be sure to draw a picture, set-up the equation, and solve for the missing piece. Round all side lengths to one decimal place and all angles to the nearest degree. • If a guy wire for a tree is 14 feet long and makes a 41 angle with the ground. How far is the base of the tree from the stake anchoring the wire? 10.6 ft • The extension ladder on the top of a 6-foot high hook and ladder truck is 150 feet long. If the angle of elevation of the ladder is 70 , to what height on a building will the ladder reach? 147ft • The angle of depression is measured from the top of a 43-foot tower to a reference point on the ground is found to be 63 . How far is the base of the tower from the point on the ground? 21.4 ft • The angle of depression from a searchlight to its target is 58 . How long is the beam of light, if the searchlight is 26 feet above the ground? 30.7 ft • A child holds the end of a kite string 30 inches above the ground. The string is taut and it makes a 68 angle with the horizontal. How high above the ground is the kite if 540 inches of string are let out? 530. 7 in • From a height of 38 meters above sea level, two ships are sighted due west. The angles of depression are 53 and 23 . How far apart are the ships? 60.9 ft • A television antenna stands on the edge of the top of a 52 story building. From a point 320 feet from the base of the building the angle of elevation to the top of the antenna is 64 . If each story is 12 feet high, calculate the height of the antenna. 32 ft • delete