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Name: Class: Date:ID: XGeometry Unit 10 Practice Test 2018Work must be shown to earn credit on any short answer problems on the practice test and on the test. No workmeans you will earn zero points for the problem.This practice test and all missing work are due before your test.1. A rectangle is inscribed in a circle as shown below. Find the exact circumference of the circle.2. Given3. In the figure below,andis a central angle, what is the value ofandis a circumscribed angle. Find the value of x.1?
ID: X4. What is the measure of?5. What is the measure of the inscribed angle6. A circle has an arc length of, if the ray is tangent to the circle?. The central angle formed issector? (Hint: find the radius first)2. What is the area of the
ID: X7. In F , CFD DFE, m BFA 6x, m AFE 3x 18, and BE and AC are diameters.Find m arc DC .8.If m BDC 25, m arc AB 140, and m arc CD 110, find m 1.9.If m 1 6x 6, m 2 8x, find m 1.3
ID: X10. Find x. Assume that segments that appear tangent are tangent.11. Use the diagram to find the measure of the given angle.m DAF12. Use the diagram to find the measure of the given angle. SRT4
ID: X13. Find x. Assume that segments that appear tangent are tangent.Find the measure of the numbered angle.14.Find x. Assume that any segment that appears to be tangent is tangent.15.5
ID: X16. Rogers planted a circular garden adjacent to one of the corners of his garage. He wants to fence his garden.Find the approximate length of the arc of fencing?17. Determine whether AB is tangent to the circle. Explain your reasoning.18. InO, mCD 130. Find m ACD.6
ID: X19.7
ID: XGeometry Unit 10 Practice Test 2018Answer SectionSHORT ANSWER1. ANS:2. ANS:3. ANS:4. ANS:5. ANS:6. ANS:7. ANS:54REF: Lesson 10-28. ANS:30REF: Lesson 10-49. ANS:42REF: Lesson 10-410. ANS:17REF: Lesson 10-511. ANS:130REF: Lesson 10-212. ANS:85 REF: Lesson 10-21
ID: X13. ANS:27REF: Lesson 10-514. ANS:90REF: Lesson 10-615. ANS:22REF: Lesson 10-616. ANS:47.1 ftdegree measure of arcarc length degree measure of whole circle circumferenceREF: Lesson 10-217. ANS:2 18 32422 6 16 292324 292, so AB is not tangent to the circle.If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency.REF: Lesson 10-518. ANS:65When a secant intersects a tangent at the point of tangency, then the measure of the angle formed is one-half themeasure of the intercepted arc.1m ACD mCD2REF: Lesson 10-619. ANS:82
REF: Lesson 10-6 16. ANS: 47.1 ft degree measure of arc degree measure of whole circle arc length circumference REF: Lesson 10-2 17. ANS: 18 2 324 6 2 16 2 292 324 292, so AB is not tangent to the circle. If a line is tangent to a circle, then it is perpendicular to the radius drawn to the point of tangency. REF: Lesson 10-5 18. ANS: 65
