Nothing Special   »   [go: up one dir, main page]
Scribd Logo
Upload

Welcome to Scribd!

  • 667 views

    Liceo de Pulilan Colleges

    Uploaded by

    jv_cindy
    The document contains a trigonometry exam for first year BSIT students given by instructor John Vincent G. Fajardo, including 10 questions testing the conversion between radian and degree measures and solving word problems involving trigonometric applications to circles, arcs, sectors, angular velocity, and linear velocity. An answer key is provided with the solutions to each of the 10 exam questions.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd

    Liceo de Pulilan Colleges

    Uploaded by

    jv_cindy
    667 views2 pages
    The document contains a trigonometry exam for first year BSIT students given by instructor John Vincent G. Fajardo, including 10 questions testing the conversion between radian and degree measures and solving word problems involving trigonometric applications to circles, arcs, sectors, angular velocity, and linear velocity. An answer key is provided with the solutions to each of the 10 exam questions.

    Original Description:

    Copyright

    © Attribution Non-Commercial (BY-NC)

    Available Formats

    DOCX, PDF, TXT or read online from Scribd

    Did you find this document useful?

    Is this content inappropriate?

    The document contains a trigonometry exam for first year BSIT students given by instructor John Vincent G. Fajardo, including 10 questions testing the conversion between radian and degree measures and solving word problems involving trigonometric applications to circles, arcs, sectors, angular velocity, and linear velocity. An answer key is provided with the solutions to each of the 10 exam questions.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    667 views2 pages

    Liceo de Pulilan Colleges

    Uploaded by

    jv_cindy
    The document contains a trigonometry exam for first year BSIT students given by instructor John Vincent G. Fajardo, including 10 questions testing the conversion between radian and degree measures and solving word problems involving trigonometric applications to circles, arcs, sectors, angular velocity, and linear velocity. An answer key is provided with the solutions to each of the 10 exam questions.

    Copyright:

    Attribution Non-Commercial (BY-NC)
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    of 2

    Liceo De Pulilan Colleges

    Longos, Pulilan, Bulacan

    College Department
    PRELIMINARY EXAMINATIONS
    2ND Semester S. Y. 2009 – 2010

    Subject Code: Subject Description: Trigonometry


    Instructor: John Vincent G. Fajardo Date: Dec. 3 – 4, 2009
    For: BSIT 1st yr

    I. Express each of the following in radian measure:


    1. 25°
    2. 18.34°
    3. 75°30’
    4. 112°40’
    5. 12°12’20”

    I. Express each of the following in degree measure:

    1. π4 rad
    2. 7π10 rad
    3. 5π6 rad
    4. 14 rad
    5. 75 rad
    I. Solve the following worded problems:

    1. The minute hand of a clock is 12 cm long. How far does the tip of the hand move
    during 20 min?
    2. A central angle of a circle of radius 30 cm intercepts an arc of 6 cm. Express the
    central angle θ in radians and in degrees.
    3. A railroad curve is to be laid out on a circle. What radius should be used if the
    track is to change direction by 25° in a distance of 120 m?
    4. A train is moving at the rate of 8 mi/h along a piece of circular track of radius
    2500 ft. Through what angle does it turn in 1 min?
    5. Assuming the earth to be a sphere of radius 3960 mi, find the distance of a point
    36°N latitude from the equator.
    6. Two cities 270 mi apart lie on the same meridian. Find their difference in latitude.
    Hint: radius of the earth is 3960 mi.
    7. A sector of a circle has a central angle of 50_ and an area of 605 cm2. Find the
    radius of the circle. Hint: K=12r2θ;therefore r=2Kθ.
    8. A sector of a circle has a central angle of 80° and a radius of 5 m. What is the area
    of the sector?
    9. A wheel is turning at the rate of 48 r/min. Express this angular speed in (a) r/s, (b)
    rad/min, and (c) rad/s.
    10. A wheel 4 ft in diameter is rotating at 80 r/min. Find the distance (in ft) traveled
    by a point on the rim in 1 s, that is, the linear velocity of the point (in ft/s).

    Liceo De Pulilan Colleges


    Longos, Pulilan, Bulacan

    College Department
    PRELIMINARY EXAMINATIONS
    2ND Semester S. Y. 2009 – 2010
    Subject Code: Subject Description: Trigonometry
    Instructor: John Vincent G. Fajardo Date: Dec. 3 – 4, 2009
    For: BSIT 1st yr

    Answer Key:
    I. Express each of the following in radian measure:
    1. 5π/36 or 0.4363 rad
    2. 0.3201 rad
    3. 151π/360 or 1.3177 rad
    4. 169π/270 or 1.9664 rad
    5. 0.2130 rad

    I. Express each of the following in degree measure:

    1. 45°
    2. 126°
    3. 150°
    4. 14°19’12” or 14.32°
    5. 80°12’26” or 80.21°
    I. Solve the following worded problems:
    1. 25.1 cm
    2. 11.46°
    3. 275 m
    4. 0.2816 rad or 16.13°
    5. 2488 miles
    6. 3°54.4’
    7. 37.2 cm
    8. 17.5 m2
    9. (a) 4/5 r/s, (b) 301.6 rad/min, (c) 5.03 rad/s
    10. 8π/3 rad/s

    You might also like