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WARM UP

WARM UP. A secant and a tangent to a circle intersect in a 42 degree angle. The two arcs of the circle intercepted by the secant and tangent have measures in a 7:3 ratio. Find the measure of the third arc. Find the measures of angle 1 and 2. 60 o. 90 o. 30 o. 90 o. 60 o. 65 o. 25 o.

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WARM UP

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  1. WARM UP • A secant and a tangent to a circle intersect in a 42 degree angle. The two arcs of the circle intercepted by the secant and tangent have measures in a 7:3 ratio. Find the measure of the third arc. • Find the measures of angle 1 and 2.

  2. 60o 90o 30o 90o 60o 65o 25o 55o 125o 90o 35o

  3. Section 9.7 Circles and Lengths of Segments

  4. Interior Segments Draw the following. ac = bd

  5. Find the value of x. x(x - 2) = 12(2) x2 – 2x = 24 It’s a quadratic so set it = 0 x2 – 2x – 24 = 0 (x – 6)(x + 4) = 0 x – 6 = 0 and x + 4 = 0 x = 6 and x = - 4

  6. TWO SECANTS Draw the following. kg = jh

  7. Find the measure of x. 10x = 12(3) 10x = 36 x = 3.6

  8. One Secant and One Tangent Draw the following. r2 = st

  9. Find the missing measure x2 = 10(4) x2 = 40

  10. Practice Problems • Page 363 - 364 • Classroom Exercises #1 - 6 • DRAW IT!!!!!!!

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