Ex 4: In each diagram, is a radius of circle Is tangent to circle R. R? a.) TR = 26 b.) UT = 8 Ex 5: In the diagram, is a point of tangency. Find the radius of circle B r C. Theorem 10.2: Tangent segments from a common external point are____________________ Ex 6: is tangent to circle at and is tangent to circle at C R C S. Find the of x is tangent to circle at and is tangent to circle at Ex 7: C S C T. Find the value of x. Ex 8: You are standing 36 feet from a circular swimming pool. The distance from you to a of tangency on the pool is 48 feet as shown. What is the radius of the swimming pool? Ex 9: Consider a circle with radius 2. Two are drawn at right angles to each other. A tangent is drawn at each of the points where the radii intersect the circle. How far from the center of the circle do the tangent lines intersect? Express answer as a simplifies radical. Name _____________________________________________________________________ Hour _________ Honors Geometry Lesson 10-2: Find Arc Measures Learning Target: By the end of today’s lesson we will be able to successfully use angle measures to find arc measures. Vocabulary Definitions Illustrations A central angle of a circle is an angle Central angle whose vertex is the ______________ of the circle. Part of a circle measuring less than Minor arc __________. Part of a circle measuring between Major arc ______ and______.
Ex 4: In each diagram, is a radius of circle R. Is tangent to circle R? a.) TR = 26 b.) UT = 8 Ex 5: In the diagram, B is a point of tangency. Find the radius r of circle C. Theorem 10.2: Tangent segments from a common external point are____________________ Ex 6: is tangent to circle C at R and is tangent to circle C at S. Find the of x Ex 7: is tangent to circle C at S and is tangent to circle C at T. Find the value of x. Ex 8: You are standing 36 feet from a circular swimming pool. The distance from you to a of tangency on the pool is 48 feet as shown. What is the radius of the swimming pool? Ex 9: Consider a circle with radius 2. Two are drawn at right angles to each other. A tangent is drawn at each of the points where the radii intersect the circle. How far from the center of the circle do the tangent lines intersect? Express answer as a simplifies radical. Name _____________________________________________________________________ Hour _________ Honors Geometry Lesson 10-2: Find Arc Measures Learning Target: By the end of today’s lesson we will be able to successfully use angle measures to find arc measures. Vocabulary Definitions Illustrations Central angle A central angle of a circle is an angle whose vertex is the ______________ of the circle. Minor arc Part of a circle measuring less than __________. Major arc Part of a circle measuring between ______ and______.
bi_honors_geo_10.docx