Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 164
epted arc is 30^, how large is the opposite arc ? Ex. 505. If two chords intersect at right angles within a circumfer-ence, the sum of two opposite intercepted arcs is equal to a semicircum-ference. Ex. 506. If M is the center of a circle inscribed in triangle ABC andif AM is prolonged to meet tlie… … Given Z. ABC formed by tangent AB and chord BQ.To prove that AabC ^ J BC. Argument 1. Draw diameter BD. 2. Aabd is a rt. Z. 3. .*. Z.ABD 9? ^ a semicircumference; i.e. Z ABD oc i- arc BCD, 4. Z CBD ^\ CD. 5. .-. Z ABD — Z CBD oc 1 (arc BCD — CD), 6. .-. A ABC oc 1 ^. Q.E.D. Reasons 1. § 54, 15. 2.…
Geometry, Plane · Geometry, Solid
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
