Tiwari Academy Discussion

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Asked: November 13, 2020In: Class 10 Maths

An aeroplane leaves an airport and flies due north at a speed of 1000 km per hour. At the same time, another aeroplane leaves the same airport and flies due west at a speed of 1200 km per hour. How far apart will be the two planes after 3/2 hours?

NCERT Solutions for Class 10 Maths Chapter 6 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 6.5 Page No:151 Questions No:11

Aadiv Singh

Asked: November 13, 2020In: Class 10 Maths

D is a point on the side BC of a triangle ABC such that angle ADC = angle BAC. Show that CA² = CB.CD.

NCERT Solutions for Class 10 Maths Chapter 6 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 6.3 Page No:140 Questions No:13

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

In an isosceles triangle ABC, with AB = AC, the bisectors of Angle B and Angle C intersect each other at O. Join A to O. Show that: (i) OB = OC (ii) AO bisects Angle A

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.2 Page No:123 Questions No: 1

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

ABC is a right angled triangle in which ∠A = 90° and AB = AC. Find ∠ B and ∠ C.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.2 Page No:124 Questions No: 7

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

AD is an altitude of an isosceles triangle ABC in which AB = AC. Show that (i) AD bisects BC (ii) AD bisects AngleA.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.3 Page No:128 Questions No: 2

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

BE and CF are two equal altitudes of a triangle ABC. Using RHS congruence rule, prove that the triangle ABC is isosceles.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.3 Page No:128 Questions No: 4

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

ABC is an isosceles triangle with AB = AC. Draw AP⊥BC to show that Angle B = Angle C.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.3 Page No:128 Questions No: 5

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

Show that of all line segments drawn from a given point not on it, the perpendicular line segment is the shortest.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.4 Page No:123 Questions No: 6

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

ABC is a triangle. Locate a point in the interior of Triangle ABC which is equidistant from all the vertices of Triangle ABC.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.5 Page No:133 Questions No: 1

Kajal Aggarwal

Asked: November 3, 2020In: Class 9

In a triangle locate a point in its interior which is equidistant from all the sides of the triangle.

NCERT Solutions for Class 9 Maths Chapter 7 Important NCERT Questions Triangles NCERT Books for Session 2022-2023 CBSE Board and UP Board Others state Board EXERCISE 7.5 Page No:133 Questions No: 2

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