Secondary-school Mathematics, Book 2D.C. Heath & Company, 1911 - Mathematics |
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ABCD angle formed apothem baking powder belt bisected bisector calories carbohydrates cents per dozen cents per pound circle whose radius circumference circumscribed Construct cost cupfuls of flour curve cutting speed decagon decimal diagonal diameter distance divided Draw chord drawn eggs equal circles equation equilateral triangle EXERCISE exponent feet per minute Find the area Find the dimensions Find the length Find the locus Find the number Find the radius foot pounds fraction Given Griddle cakes homologous sides hypotenuse inscribed angle intercepted arcs isosceles trapezoid line shaft logarithm mantissa mean proportional measured middle points number of sides ounces parallel parallelogram perpendicular proof is left protein prove pulley quadratic quadrilateral radii ratio rectangle regular hexagon regular polygon revolutions per minute right triangle round steak secant segments similar polygons Solve square root straight line tangent THEOREM trapezoid weighs
Popular passages
Page 360 - In any triangle, the square of the side opposite an acute angle is equal to the sum of the squares of the other two sides, minus twice the product of one of these sides and the projection of the other side upon it 190 THEOREM XLIX 196.
Page 353 - The line joining the middle points of two sides of a triangle is parallel to the third side and equal to half of the third side.
Page 356 - If a perpendicular is drawn from the vertex of the right angle to the hypotenuse of a right triangle : 1st.
Page 354 - The sum of two sides of a triangle is greater than the third side, and their difference is less than the third side.
Page 360 - If from, a point without a circle a secant and a tangent are drawn, the tangent is a mean proportional between the whole secant and the external segment.
Page 259 - The Radius of a sphere is a straight line drawn from the center to any point in the surface.
Page 360 - The. sum of the angles of any polygon is equal to twice as many right angles as the polygon has sides, less four right angles.
Page 354 - Two triangles are congruent if (a) two sides and the included angle of one are equal, respectively, to two sides and the included angle of the other...
Page 358 - Two triangles are similar if an angle of the one is equal to an angle of the other, and the sides including these angles are proportional. 0 B Hyp. In A ABC and A'B'O, <r ZA = ZA\ and AB: A'B
Page 298 - The areas of two circles are to each other as the squares of their radii, or as the squares of their diameters. S TrR2 R* If1' = ~R^ = "cT* = -D'*