Chapter 7 – Triangles
S is any point in the interior of ∆ PQR. Show that SQ + SR < PQ + PR.
30
Jun
S is any point in the interior of ∆ PQR. Show that SQ + SR
If the bisector of an angle of a triangle also bisects the opposite side, prove that the triangle is isosceles.
30
Jun
If the bisector of an angle of a triangle also bisects the opposite side, prove that the triangle is isosceles. If the bisector of an angle of a triangle also bisects the opposite side prove that the triangle is isosceles. June 30, 2021 Category: Chapter 7 - Triangles , Maths , NCERT Class 9 ,
Prove that if in two triangles two angles and the included side of one triangle are equal to two angles and the included side of the other triangle, then the two triangles are congruent.
30
Jun
Prove that if in two triangles two angles and the included side of one triangle are equal to two angles and the included side of the other triangle, then the two triangles are congruent. Prove that if in two triangles two angles and the included side of one triangle are equal to two angles and [...]
In Fig. 7.9, ABC is a right triangle and right angled at B such that ∠BCA = 2 ∠BAC. Show that hypotenuse AC = 2 BC.
30
Jun
In Fig. 7.9, ABC is a right triangle and right angled at B such that ∠BCA = 2 ∠BAC. Show that hypotenuse AC = 2 BC. ABC is a right triangle and right angled at B such that ∠BCA = 2 ∠BAC. Show that hypotenuse AC = 2 BC. In Fig. 7.9 June 30, 2021 [...]
In Fig.7.3, PQ > PR and QS and RS are the bisectors of ∠Q and ∠R, respectively. Show that SQ > SR.
30
Jun
In Fig.7.3, PQ > PR and QS and RS are the bisectors of ∠Q and ∠R, respectively. Show that SQ > SR. In Fig.7.3 PQ > PR and QS and RS are the bisectors of ∠Q and ∠R respectively. Show that SQ > SR. June 30, 2021 Category: Chapter 7 - Triangles , Maths , [...]
In Fig.7.2, two lines AB and CD intersect each other at the point O such that BC || DA and BC = DA. Show that O is the mid-point of both the line-segments AB and CD.
30
Jun
In Fig.7.2, two lines AB and CD intersect each other at the point O such that BC || DA and BC = DA. Show that O is the mid-point of both the line-segments AB and CD. In Fig.7.2 two lines AB and CD intersect each other at the point O such that BC || DA [...]
In Fig 7.1, PQ = PR and ∠Q = ∠R. Prove that ∆ PQS ≅ ∆ PRT.
30
Jun
In Fig 7.1, PQ = PR and ∠Q = ∠R. Prove that ∆ PQS ≅ ∆ PRT. In Fig 7.1 PQ = PR and ∠Q = ∠R. Prove that ∆ PQS ≅ ∆ PRT. June 30, 2021 Category: Chapter 7 - Triangles , Maths , NCERT Class 9 ,
In triangles ABC and DEF, ∠A = ∠D, ∠B = ∠E and AB = EF. Will the two triangles be congruent? Give reasons for your answer.
30
Jun
In triangles ABC and DEF, ∠A = ∠D, ∠B = ∠E and AB = EF. Will the two triangles be congruent? Give reasons for your answer. ∠A = ∠D ∠B = ∠E and AB = EF. Will the two triangles be congruent? Give reasons for your answer. In triangles ABC and DEF June 30, 2021 [...]
In the two triangles ABC and DEF, AB = DE and AC = EF. Name two angles from the two triangles that must be equal so that the two triangles are congruent. Give reason for your answer.
30
Jun
In the two triangles ABC and DEF, AB = DE and AC = EF. Name two angles from the two triangles that must be equal so that the two triangles are congruent. Give reason for your answer. AB = DE and AC = EF. Name two angles from the two triangles that must be equal [...]
If ∆ ABC ≅ ∆ PQR and ∆ ABC is not congruent to ∆ RPQ, then which of the following is not true:
30
Jun
If ∆ ABC ≅ ∆ PQR and ∆ ABC is not congruent to ∆ RPQ, then which of the following is not true: If ∆ ABC ≅ ∆ PQR and ∆ ABC is not congruent to ∆ RPQ then which of the following is not true: June 30, 2021 Category: Chapter 7 - Triangles , [...]