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acres adjacent altitude answer base bisect bisector BOOK central centre characteristic chord circle circumference circumscribed College common Construct decimal Define described diagonals diameter difference distance divided drawn equal equilateral equivalent exterior external extreme feet figure Find the area find the length Find the number Find the radius Find the side foot formed four GEOMETRY Give given given point greater half hexagon homologous sides HOURS hypotenuse inches increase inscribed intercepted intersect isosceles June less line joining logarithm mantissa mean meet metres middle points miles one-half opposite sides parallel parallelogram perimeter perpendicular problems proportional Prove quadrilateral radii radius ratio rectangle regular hexagon regular polygon respectively right angles scribed secant segments Show similar triangles square square feet straight line subtended tangent third side trapezoid triangle units University vertex vertices yards
Σελίδα 80 - Similar triangles are to each other as the squares of their homologous sides.
Σελίδα 69 - 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 diminished by twice the product of one of those sides and the projection of the other upon that side.
Σελίδα 79 - If four quantities are in proportion, they are in proportion by composition, ie the sum of the first two terms is to the second term as the sum of the last two terms is to the fourth term.
Σελίδα 93 - The areas of two triangles which have an angle of the one equal to an angle of the other are to each other as the products of the sides including the equal angles. A D A' Hyp. In triangles ABC and A'B'C', To prove AABC A A'B'C' A'B' x A'C ' Proof. Draw the altitudes BD and B'D'.
Σελίδα 101 - The logarithm of a number is the exponent of the power to which it is necessary to raise a fixed number, in order to produce the first number.
Σελίδα 74 - The bisector of an angle of a triangle divides the opposite side into segments which are proportional to the adjacent sides.
Σελίδα 101 - The logarithm of a product is equal to the sum of the logarithms of its factors.
Σελίδα 68 - Prove that, if from a point without a circle a secant and a tangent be drawn, the tangent is a mean proportional between the whole secant and the part without the circle.