Middle School Maths (Grades 6, 7, 8, Class 9 Maths Chapter 13 Question Answer Free 9) - Free Questions and Problems With Answers Apr 20, �� Important Questions of Chapter Triangles Class 9. Question 1. In ?ABC, if ?B=90�, then write what is the longest side. Solution: We know that the side which is opposite to the largest angle in a triangle is the longest side. ?The Longest Side=MO. Question 2. If in ?MNO, ?M =?N + ?O, then write what will be the shape of the given triangle. NCERT Solutions For Class 9 Maths Chapter 7; NCERT Solutions For Class 9 Maths Chapter 8; This article will brush up your Mathematical skills and move you a step forward towards understanding the subject. These CBSE Important Questions for Class 9th Maths gives an idea about the type of questions that are likely to be asked in the board. Aug 18, �� Here is the list of Extra Questions for Class 9 Maths with Answers based on latest NCERT syllabus prescribed by CBSE. Chapter 1 Number Systems Class 9 Extra Questions Chapter 2 Polynomials Class 9 Extra Questions.
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What can you say about BC and BD? Show that CD bisects AB. Thus, CD bisects AB. AS is a line segment and P is its mid-point. Point D is joined to point B see figure. Join A to 0. Show that these altitudes are equal. Show that in a right angled triangle, the hypotenuse is the longest side. Therefore, we get AC is the longest side. But AC is the hypotenuse of the triangle.

Thus, the hypotenuse is the longest side. Solution: Let us join AC. Angle opposite to equal sides of an isosceles triangle are equal. The sides opposite to equal angles of a triangle are equal.

If two sides of a triangle are unequal then the angle opposite to the longer side is larger. In any triangle, the side opposite to the larger angle is larger.

The sum of any two sides of a triangle is greater than the third side. The difference between any two sides of a triangle is less than its third side. If the bisector of the vertical angle of a triangle bisects the base, then triangle is an isosceles triangle.

The sum of any two sides of a triangle is greater than twice the median drawn to the third side. Defining Congruence: If the size and shape of the two figures are the same, then these are known as congruent figures. Two circles are considered congruent and their radii are of the same size. Two squares are considered congruent if their sides are of equal size. A triangle is considered to be congruent if all of its corresponding sides and angles are of an equal amount.

Angle-Side-Angle ASA Congruence Rule: If two angles and the including side of a triangle is equal to another triangle, they are known as congruent triangles. Side-Angle-Side SAS Congruence Rule: If two sides and the including side of a triangle is equal to another triangle, they are known as congruent triangles. Side-Side-Side SSS Congruence Rule: If all three sides of a triangle are equal to the three corresponding sides of one of another triangle, these are known as congruent triangles.

Angle-Angle-Side AAS Congruence Rule: In two triangles, if any two pairs of angles along with a pair of the corresponding sides is equal, these are known as congruent triangles. Right Angle-Hypotenuse Side RHS Congruence Rule: If the hypotenuse and anyone side are equal of any two right-angled triangles, then they will be known as congruent triangles.

The two angles of an isosceles triangle which are opposite to two equal sides are also considered to be equal. Two sides of an isosceles triangle which are opposite to the equal angles are also considered to be equal.

This is the converse of the previously mentioned theorem. Theorem 1: The sum of any of the two sides of a triangle will certainly always be greater than the third side. Theorem Image to be added soon.

The side which is opposite to the larger angle is always longer, in the given triangle image. This is the converse of the following theorem. Theorem 3: If the two sides seem to be unequal then the angle which is opposite to the longer side is larger, in the previously given triangle image.




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