## Modern Junior Mathematics, Book 3 |

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### Contents

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### Common terms and phrases

adding addition algebraic angle antilog axes base called CHAPTER Check circle coefficient complete congruent contains cost count decimal denominator difference dimensions direction distance Divide division Draw equal Exercises exponents expression factors fall figure Find Find the numbers formula fractions geometry given gives graph height hypotenuse inches kind length less letter linear locate logarithms means measure method multiply necessary negative perimeter places pole positive Practice problem Prove quadratic equation radius ratio rectangle represent right triangle side side opposite simple Solution solve square square root Substituting subtraction tangent theorem third unknown variable width Write zero

### Popular passages

Page 220 - 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 217 - 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 229 - 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 228 - A line drawn from the vertex of an isosceles triangle to the middle of the base, is perpendicular to, the base.

Page 216 - 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 223 - In an isosceles triangle the angles opposite the equal sides are equal.

Page 219 - 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 224 - Prove that the bisector of the vertex angle of an isosceles triangle bisects the base and is perpendicular to it.

Page 224 - The bisector of the vertex angle of an isosceles triangle is perpendicular to the base.

Page 137 - ... more cases of diphtheria and treat 10 of them successfully, he will have treated f of his cases successfully. But if he should have 32 more cases and succeed with 30 of them, he will have succeeded with | of his cases. How many cases has he had so far and how many has he treated successfully? 41. If 1 be added to the numerator of a certain fraction, the value of the fraction becomes f ; but if 1 be subtracted from its denominator, the value of the fraction becomes |. Find the fraction.