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Richard Joseph WELCH, Congress, CA (1869-1949)

WELCH Richard Joseph , a Representative from California; born in Monroe County, N.Y., February 13, 1869; educated in the public schools; moved to California in early boyhood and settled in San…

Paperback

Source: Publishers Weekly. The End (A Series of Unfortunate Events #13), Lemony Snicket, illustrated by Brett Helquist…

Geometry: Taking the Burden out of Proofs

Taking the Burden out of ProofsGeometryTaking the Burden out of ProofsThe Law of DetachmentThe Importance of Being DirectProof by Contradiction: The Advantage of Being IndirectThe Given Information:…

Geometry: Tangents

TangentsGeometryAnatomy of a CircleBasic TermsArcsCircumference and Area: Pi Anyone?TangentsFrom One Theorem Comes Many You might have observed that I occasionally go off on a tangent. In fact, I'…

Geometry: Polyhedra

PolyhedraGeometryThe Next Dimension: Surfaces and SolidsPrismsPyramidsCylinders and ConesPolyhedraSpheresPlatonic Solids A polyhedron is a three-dimensional version of a polygon. Recall that a…

Geometry: Pyramids

PyramidsGeometryThe Next Dimension: Surfaces and SolidsPrismsPyramidsCylinders and ConesPolyhedraSpheresPlatonic Solids A geometry book would not be complete if it did not include more than a…

Geometry: Whose Geometry Is It Anyway?

Whose Geometry Is It Anyway?GeometryWhose Geometry Is It Anyway?Non-Euclidean GeometryHyperbolic Geometry: Saddle Up!Spherical GeometryTaxi-Cab GeometryMax GeometryHow Many Shapes Can a Circle Have…