Plane geometry, with problems and applications (1910)
Slaught, H. E. (Herbert Ellsworth), 1861-1937, Lennes, N. J. (Nels Johann), 1874- joint author · Boston, Allyn and Bacon · leaf 142
r 0 andradius OM. (a) Is arc ACB tangent to AM andBN at A and B respectively? Why? (S) Is arc MDN tangent to Xm and^If at M and N respectively ? Why ? (c) If ^B = 8 feet, find BO, and hence, OM, and finally CD.That is, if the sewer is 8 feet wide, what is its depth? (d) If the width of the sewer is… … 130 PLANE GEOMETRY. 264. Theorem. If in two right triangles the hypote-nuse of the one equals the hypotenuse of the other, and ifthe sides a, b and a, V are such that a > a, then h < h. Proof : Let c be the length of the hypotenuse in each. Then a^+V^ = c^ and a^ + 62= c^. _ (Why ?) .-. a2 +…
Geometry, Plane
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