# Midterm and Final Exam in Palne Trigo

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SURIGAO DEL SUR STATE UNIVERSITY Lianga, Surigao del Sur MIDTERM EXAMINATION IN PLANE TRIGONOMETRY Multiple Choice: Choose the letter which corresponds the correct answer. 1) An angle having the same initial and terminal sides. a) Quadrantal b) Central c) Coterminal 2) An angle whose terminal side coincides with the coordinate axis. a) Quadrantal b) Central c) Coterminal 3) A counter clockwise rotation of ¼ revolution. a)   b)  /4 c)   4) A counter clockwise rotation of 1 & 1/18 revolution. a) 3 pi/4 b) 9 pi/4 c) pi/6 5) 7pi/4 converted to degree. a) 315 deg. b) 270 deg. c) 225 degree 6) 300 degree is how many radian? a) 5pi/3 b) 5pi/4 c) 5pi/6 7) The positive coterminal of pi/4 is a) 8pi/4 b) 9pi/4 c) pi/6 8) While the negative coterminal of pi/4 is a) -15pi/4 b)  – pi/4 c) -7pi/4 9) Two positive angles are supplementary if their sum is a) 2pi b) 3pi/2 c) pi 10) Two positive angles are complementary if their sum is a) 3pi/4 b) pi/2 c) pi/6 11) The complement of 2pi/5 is a) 3pi/4 b) pi/8 c) pi/10 12) The supplement of pi/3 is a) 2pi/3 b) pi/3 c) pi/4 13) Which do not belong to the group of arc length of a circle with coordinates (0,1) a) pi/2 b) 5pi/2 c) 3pi 14) The circle which passes through (0,-1) is equal to a) 3pi/2 b) 5pi/2 c) 3pi 15) What is 1/6 of 2pi? a) pi b) pi/2 d) pi/3 Test II Problem Solving (10 pts. Each) 1) Give the equation of a circle with the center (2,-3) and radius =2. Sketch its graph and label 4 coordinates points on the X and Y axis where the circle lies. 2) If the radius of a circle is increased and the measure of the central angle is held constant, what happens to the length of the intercepted arc? Illustrate by a drawing based on the result of the solution given radius = 1,2,3 with central angle equals 45 degree. Show solution neatly and drawing should be properly labeled. Prepared by: TERESITA L. LOREN  SURIGAO DEL SUR STATE UNIVERSITY Lianga, Surigao del Sur FINAL EXAMINATION IN PLANE TRIGONOMETRY Multiple Choice: Choose the letter which corresponds the correct answer. 1) If the diagonal side of a square is 21  , what is the dimension of one of its side? a) 12 b) 21 c) 22 d) None of these 2) The 5/4   is found in quadrant: a) I b) II c) III d) NOT 3) The opposite side of a 30   angle of a triangle is 61. What is its diagonal dimension? a) 100 b) 122 c) 150 d) NOT 4) The semi-circle is equal to: a) 2   b)   c) 3/4   d) NOT 5) The reference angle of 320   a) 70   b) 40   c) 30   d) NOT 6) The ratio of sine A for a right triangle whose side are 3m, 4m, and 5m respectively is: a) 3/5 b) 4/3 c) 4/5 d) NOT 7. The ratio of tan B is: a) 3/5 b) 5/3 c) ¾ d) NOT 8. The bearing of a ship at a rate of 50 m/hr due south then turn 40   due east at 60mph after 3 hours and 30 mins? a) S 50   E b) S 40   E c) S 60   E d) NOT

Jul 23, 2017

#### Problem Set 1

Jul 23, 2017
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