Modern Junior Mathematics, Book 3Gregg, 1920 - Mathematics |
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Common terms and phrases
AABC acute angle algebraic angle of elevation antilog base circle coefficient completing the square complex fraction congruent coördinates cosine decimal diagonal dimensions distance Divide division Draw a rectangle equal exponents factors find the height Find the length Find the numbers Find the perimeter Find the value formula geometric given gives graph hypotenuse isosceles triangle linear equations logarithms mantissa marked price measure method multiply negative number number decreased pair of axes parentheses pencils perfect squares pole positive number Practice Exercises problem Prove Pythagorean Theorem quadratic equation quadratic expression quotient radius ratio right triangle side adjacent side opposite simple equation sine Solution Solve the following square root standard form Substituting subtraction tangent theorem trinomial unknown unmeasured line variable width x-axis x-distance x³y zero
Popular passages
Page 227 - In an isosceles triangle the angles opposite the equal sides are equal.
Page 224 - Two triangles are congruent if two angles and the included side of one are equal respectively to two angles and the included side of the other.
Page 221 - Two triangles are congruent if two sides and the included angle of one are equal respectively to two sides and the included angle of the other.
Page 233 - Two right triangles are equal if the hypotenuse and an acute angle of the one are equal respectively to the hypotenuse and an acute angle of the other.
Page 232 - A line drawn from the vertex of an isosceles triangle to the middle of the base, is perpendicular to, the base.
Page 220 - If two triangles have two sides and the included angle of one equal respectively to two sides and the included angle of the other, the triangles are equal.
Page 237 - If two parallel lines are cut by a transversal, the alternate interior angles are equal.
Page 223 - Two right triangles are equal if the two legs of one are equal respectively to the two legs of the other. Given : Rt. A ABC and DEF ; AC = DF; CB = FE. A n . To Prove : A ABC = A DEF.
Page 228 - Prove that the bisector of the vertex angle of. an isosceles triangle bisects the base and is perpendicular to it.