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Find the value of x. 45o 5√2 x 45o x 10 5√2 2.5 5 Find the value of x. x √2 4 2 1 2√2 √2 8 8 8 What is the height of this triangle? 4 8 8√3 4√3 Which expression gives the correct length forXW in the diagram below? X 45o Y Z 5 30o 5 + 5√3 5 + 5√2 5√3 + 5√2 5 + 10 W 68 Find the unknown side length. 60 x x = 75 and 85 are lengths of two sides of a righttriangle and form a Pythagorean triple.Find the length of the third side and tell whether it is a leg or the hypotenuse. 42; leg 42; hypotenuse 86; hypotenuse 40; leg What is the length of the hypotenuse of a right triangle with leg lengths of 8 inches and 15 inches? 21 inches 25 inches 13 inches 17 inches What type of triangle has side lengths of 4, 7 and 9? Right scalene Obtuse scalene None of the above Acute scalene Which side lengths do not form a right triangle? 5, 12, 13 10, 24, 28 15, 36, 39 50, 120, 130 A Find the length of AC. 7 in B C 7√2 in 2√7 in 7√2 √14 in 2 in Which side lengths do NOT represent a 30-60-90 triangle? 5 , 5√3 , 10 1 , √3 , 1 2 2 2 2 √2, √6, 2√2 3, 3√3, 6 20 Which expression can be used to find the value of x? x 40o x = 20 x = 20 x = 20•tan 40o x = tan 40o tan 50o tan 40o 20 X Find sin X and sin Y. Write each as a fraction. 17 15 Y Z 8 sin Y = sin X = What is the approximate value of x in the triangle? Round to the nearest tenth. 0.4 2.7 7.5 19.2 32o 12 x x Find the value of x and y. Round to the nearest tenth. 71o 5 y x = y = In ∆PQR, which expression can be used to find PQ? 10 10 10 • sin 29o 10 • cos 29o cos 29o sin 29o P 29o Q 10 R Which expression is correct? L K J sin -1 JL = m∡J tan -1 KL = m∡J cos -1 JL = m∡K sin -1 JL = m∡K JK KL JK JL Find the measure of ∡A. Round to the nearest tenth degree. B C 6 10 A m ∡A = o |