Therefore, star-shaped rangoli will be filled with more equilateral triangles of side 1 cm in it. Whereas starshaped rangoli also has 6 equilateral triangles of side 5cm and a hexagon in middle. As a result, the ice cream parlour should be located near ΔABC's circumcenter O. The circumcentre is the only point in a triangle that is equidistant from its vertices. (Hint: The parlor should be equidistant from A, B and C)Īns: If the ice cream parlour is equidistant from A, B, and C, the maximum number of people can approach it. Where should an ice-cream parlour be set up so that maximum number of persons can approach it? In a huge park people are concentrated at three points (see the given figure)Ī: where there are different slides and swings for children,ī: near which a man-made lake is situated,Ĭ: which is near to a large parking and exit. As a result, I is the point that is equidistant from all of $\Delta ABC$'s sides.ģ. I is the point at which these angle bisectors cross each other. Point I Equidistant from all the Sides of the Triangleīy drawing the angle bisectors of the interior angles of this triangle in $\Delta ABC$, we may get the incentre of this triangle. AD is an altitude of an isosceles triangles ABC in which AB = AC. In quadrilateral ACBD, AC = AD and AB bisects \ (See the given figure). The questions require students to find the values of the sides and angles of similar triangles.Īccess NCERT Answers for Class-9 Maths Chapter 7 – Trianglesġ. The questions in this exercise require students to apply the criteria for the similarity of triangles such as AA, SAS, and SSS. The questions require students to apply these theorems to determine if a triangle can be formed with the given sides or not.Įxercise 7.5: This exercise comprises four questions and deals with the similarity of triangles. The questions in this exercise deal with the triangle inequality theorem and the converse of the same. The questions in this exercise require students to apply the properties of these triangles to find the values of angles and sides.Įxercise 7.4: This exercise consists of six questions and mainly focuses on the inequalities in triangles. The questions require students to apply these criteria to determine if the given triangles are congruent or not.Įxercise 7.3: This exercise comprises five questions, and it deals with the properties of isosceles and equilateral triangles. The questions in this exercise deal with the criteria for congruence of triangles such as SSS, SAS, ASA, RHS, and AAS. The questions are mostly objective and require students to apply simple formulas to find the values of angles and sides of triangles.Įxercise 7.2: This exercise consists of eight questions and mainly focuses on the congruence of triangles. Here's a brief overview of each exercise:Įxercise 7.1: This exercise comprises eight questions, and it mainly deals with the basic properties of triangles such as interior angles, exterior angles, and inequalities. There are five exercises in this chapter, and each of them deals with different kinds of questions related to triangles. The chapter mainly focuses on the properties and theorems of triangles, their congruence, and their similarity. NCERT Solutions for Class 9 Maths Chapter 7, "Triangles," is a crucial chapter for students as it provides the basic foundation for higher-level geometry.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |