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Inscribed Angles: Practice

12 multiple-choice questions, progressively harder.

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Question 1 of 12
  1. 1

    Diameter VDVD is outside ∠AVB\angle AVB, with ray VAVA between VDVD and VBVB. Angle DVBDVB measures 71∘71^\circ, and DVADVA measures 26∘26^\circ. Find arc ABAB excluding VV.

    Diameter VD lies outside angle AVB. The arc order away from V is D, A, B.Diameter VD lies outside angle AVB. The arc order away from V is D, A, B. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.VDABOSchematic; use the stated givens.
    Answer choices for question 1
  2. 2

    Diameter VDVD lies inside ∠AVB\angle AVB. Angles AVDAVD and DVBDVB measure (x+7)∘(x+7)^\circ and (2x−4)∘(2x-4)^\circ. The intercepted arc ADBADB measures 174∘174^\circ. Find xx.

    Diameter VD splits angle AVB and intercepted arc ADB. Solid arc AD and dashed arc DB add.Diameter VD splits angle AVB and intercepted arc ADB. Solid arc AD and dashed arc DB add. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.VADBOarc ADarc DBSchematic; use the stated givens.
    Answer choices for question 2
  3. 3

    VAVA is a diameter with center OO. In triangle VOBVOB, the angle at OO measures (4x+12)∘(4x+12)^\circ, and the angle at BB measures (x+6)∘(x+6)^\circ. Find arc BABA excluding VV.

    The center O lies on side VA of angle AVB; VA is a diameter.The center O lies on side VA of angle AVB; VA is a diameter. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.VABOSchematic; use the stated givens.
    Answer choices for question 3
  4. 4

    Point QQ lies on major arc ABAB, and RR lies on minor arc ABAB. Given m∠AQB=82∘m\angle AQB=82^\circ and arc ARAR of 76∘76^\circ, find arc RBRB along minor arc ABAB.

    Q lies on major arc AB, and R partitions minor arc AB into AR and RB.Q lies on major arc AB, and R partitions minor arc AB into AR and RB. The schematic preserves circle incidence, point order, and the named ray directions. Use the measures in the statement.ABQRSchematic; use the stated givens.
    Answer choices for question 4
  5. 5

    An inscribed angle measures (4x+30)∘(4x+30)^\circ. Its intercepted major arc measures (7x+80)∘(7x+80)^\circ. Find xx.

    Answer choices for question 5
  6. 6

    Triangle ABCABC is inscribed in a circle and has a right angle at CC. Its angles at A,BA,B measure (4x+8)∘(4x+8)^\circ and (6x+2)∘(6x+2)^\circ. Find arc ACAC excluding BB.

    Answer choices for question 6
  7. 7

    Opposite tangent rays TR,TSTR,TS form angles with chord TATA of (3x+11)∘(3x+11)^\circ and (5x+9)∘(5x+9)^\circ, respectively. Ray TRTR lies on the same side of line OTOT as AA. Find minor arc TATA.

    TR and TS are opposite tangent rays at T. R and A lie on the same side of line OT.TR and TS are opposite tangent rays at T. R and A lie on the same side of line OT. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.TAORSSchematic; use the stated givens.
    Answer choices for question 7
  8. 8

    Ray TSTS is tangent at TT on the opposite side of line OTOT from AA. Given m∠STA=94∘m\angle STA=94^\circ, point BB on major arc TATA, and m∠TAB=31∘m\angle TAB=31^\circ, find m∠ATBm\angle ATB.

    TS is the tangent ray opposite A across line OT. B lies on major arc TA; triangle TAB is drawn.TS is the tangent ray opposite A across line OT. B lies on major arc TA; triangle TAB is drawn. The schematic preserves circle incidence, point order, and the named ray directions. Use the measures in the statement.TABORSSchematic; use the stated givens.
    Answer choices for question 8
  9. 9

    PP lies on major arc ABAB, and QQ on minor arc ABAB. Given m∠APB=62∘m\angle APB=62^\circ, what is the measure of arc APBAPB containing PP?

    P lies on major arc AB and Q on minor arc AB.P lies on major arc AB and Q on minor arc AB. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.ABPQSchematic; use the stated givens.
    Answer choices for question 9
  10. 10

    Diameter VDVD is inside ∠AVB\angle AVB. Angle AVBAVB measures 81∘81^\circ, and arc ADAD measures 68∘68^\circ. Find arc DBDB on intercepted arc ADBADB.

    Diameter VD splits angle AVB and intercepted arc ADB. Solid arc AD and dashed arc DB add.Diameter VD splits angle AVB and intercepted arc ADB. Solid arc AD and dashed arc DB add. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.VADBOarc ADarc DBSchematic; use the stated givens.
    Answer choices for question 10
  11. 11

    Diameter VDVD lies outside ∠AVB\angle AVB. The arc order away from VV is D,A,BD,A,B. Given m∠AVB=34∘m\angle AVB=34^\circ and arc DBDB of 158∘158^\circ, find arc DADA.

    Diameter VD lies outside angle AVB. The arc order away from V is D, A, B.Diameter VD lies outside angle AVB. The arc order away from V is D, A, B. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.VDABOSchematic; use the stated givens.
    Answer choices for question 11
  12. 12

    At AA, tangent ray ASAS lies on the opposite side of line OAOA from BB, and m∠SAB=114∘m\angle SAB=114^\circ. Point PP lies on major arc ABAB and QQ on minor arc ABAB. Which pair is correct?

    At A the tangent ray AS is opposite B across line OA. P lies on major arc AB and Q on minor arc AB.At A the tangent ray AS is opposite B across line OA. P lies on major arc AB and Q on minor arc AB. Exact angle and arc measures come from the statement; the schematic preserves the stated incidence and point order.ABPQSOSchematic; use the stated givens.
    Answer choices for question 12