![]() They can be classified according to 2 groups. There are six types of triangles in geometry. ![]() When all the sides and angles of a triangle are equal, it is called an equilateral or equiangular triangle.įAQs on Types of Triangles What are the Types of Triangles in Geometry?.The three internal angles in a triangle always add up to 180°.In an equilateral triangle, each of the three internal angles is 60°.Here is a list of a few points that should be remembered while studying the types of triangles: Acute Scalene Triangle : A triangle that has 3 unequal sides and 3 acute angles is called an acute scalene triangle.Obtuse Scalene Triangle : A triangle with an obtuse angle with sides of different measures is called an obtuse scalene triangle.Right Scalene Triangle : A triangle in which any one of the angles is a right angle and all the 3 sides are unequal, is called a right scalene triangle.Acute Isosceles Triangle : A triangle in which all 3 angles are acute angles and 2 sides measure the same is called an acute isosceles triangle.Obtuse Isosceles Triangle : A triangle in which 2 sides are equal and one angle is an obtuse angle is called an obtuse isosceles triangle.So, in an isosceles right triangle, two sides and two acute angles are congruent. Isosceles Right Triangle: A triangle in which 2 sides are equal and one angle is 90° is called an isosceles right triangle.Equilateral or Equiangular Triangle : When all sides and angles of a triangle are equal, it is called an equilateral or equiangular triangle.The different types of triangles are also classified according to their sides and angles as follows: Get the free view of Chapter 10, Isosceles Triangles Concise Mathematics Class 9 ICSE additional questions for Mathematics Concise Mathematics Class 9 ICSE CISCE,Īnd you can use to keep it handy for your exam preparation.Types of Triangle Based on Sides and Angles Maximum CISCE Concise Mathematics Class 9 ICSE students prefer Selina Textbook Solutions to score more in exams. ![]() The questions involved in Selina Solutions are essential questions that can be asked in the final exam. ![]() Using Selina Concise Mathematics Class 9 ICSE solutions Isosceles Triangles exercise by students is an easy way to prepare for the exams, as they involve solutionsĪrranged chapter-wise and also page-wise. Selina textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.Ĭoncepts covered in Concise Mathematics Class 9 ICSE chapter 10 Isosceles Triangles are Isosceles Triangles, Isosceles Triangles Theorem, Converse of Isosceles Triangle Theorem. This will clear students' doubts about questions and improve their application skills while preparing for board exams.įurther, we at provide such solutions so students can prepare for written exams. Selina solutions for Mathematics Concise Mathematics Class 9 ICSE CISCE 10 (Isosceles Triangles) include all questions with answers and detailed explanations. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. has the CISCE Mathematics Concise Mathematics Class 9 ICSE CISCE solutions in a manner that help students Chapter 1: Rational and Irrational Numbers Chapter 2: Compound Interest (Without using formula) Chapter 3: Compound Interest (Using Formula) Chapter 4: Expansions (Including Substitution) Chapter 5: Factorisation Chapter 6: Simultaneous (Linear) Equations (Including Problems) Chapter 7: Indices (Exponents) Chapter 8: Logarithms Chapter 9: Triangles Chapter 10: Isosceles Triangles Chapter 11: Inequalities Chapter 12: Mid-point and Its Converse Chapter 13: Pythagoras Theorem Chapter 14: Rectilinear Figures Chapter 15: Construction of Polygons (Using ruler and compass only) Chapter 16: Area Theorems Chapter 17: Circle Chapter 18: Statistics Chapter 19: Mean and Median (For Ungrouped Data Only) Chapter 20: Area and Perimeter of Plane Figures Chapter 21: Solids Chapter 22: Trigonometrical Ratios Chapter 23: Trigonometrical Ratios of Standard Angles Chapter 24: Solution of Right Triangles Chapter 25: Complementary Angles Chapter 26: Co-ordinate Geometry Chapter 27: Graphical Solution (Solution of Simultaneous Linear Equations, Graphically) Chapter 28: Distance Formula ![]()
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