Chapter 7 – Triangles
1. ABC is an isosceles triangle with AB = AC and BD and CE are its two medians. Show that BD = CE.
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Jun
1. ABC is an isosceles triangle with AB = AC and BD and CE are its two medians. Show that BD = CE. 1. ABC is an isosceles triangle with AB = AC and BD and CE are its two medians. Show that BD = CE. June 30, 2021 Category: Chapter 7 - Triangles , [...]
12. Is it possible to construct a triangle with lengths of its sides as 8 cm, 7 cm and 4 cm? Give reason for your answer.
30
Jun
12. Is it possible to construct a triangle with lengths of its sides as 8 cm, 7 cm and 4 cm? Give reason for your answer. 12. Is it possible to construct a triangle with lengths of its sides as 8 cm 7 cm and 4 cm? Give reason for your answer. June 30, 2021 [...]
11. Is it possible to construct a triangle with lengths of its sides as 9 cm, 7 cm and 17 cm? Give reason for your answer.
30
Jun
11. Is it possible to construct a triangle with lengths of its sides as 9 cm, 7 cm and 17 cm? Give reason for your answer. 11. Is it possible to construct a triangle with lengths of its sides as 9 cm 7 cm and 17 cm? Give reason for your answer. June 30, 2021 [...]
10. M is a point on side BC of a triangle ABC such that AM is the bisector of ∠BAC. Is it true to say that perimeter of the triangle is greater than 2 AM? Give reason for your answer.
30
Jun
10. M is a point on side BC of a triangle ABC such that AM is the bisector of ∠BAC. Is it true to say that perimeter of the triangle is greater than 2 AM? Give reason for your answer. 10. M is a point on side BC of a triangle ABC such that AM [...]
9. AD is a median of the triangle ABC. Is it true that AB + BC + CA > 2 AD? Give reason for your answer.
30
Jun
9. AD is a median of the triangle ABC. Is it true that AB + BC + CA > 2 AD? Give reason for your answer. 9. AD is a median of the triangle ABC. Is it true that AB + BC + CA > 2 AD? Give reason for your answer. June 30, 2021 [...]
8. In ∆ PQR, ∠P = 70° and ∠R = 30°. Which side of this triangle is the longest? Give reason for your answer.
30
Jun
8. In ∆ PQR, ∠P = 70° and ∠R = 30°. Which side of this triangle is the longest? Give reason for your answer. ∠P = 70° and ∠R = 30°. Which side of this triangle is the longest? Give reason for your answer. 8. In ∆ PQR June 30, 2021 Category: Chapter 7 - [...]
7. If ∆ PQR ≅ ∆ EDF, then is it true to say that PR = EF? Give reason for your answer.
30
Jun
7. If ∆ PQR ≅ ∆ EDF, then is it true to say that PR = EF? Give reason for your answer. 7. If ∆ PQR ≅ ∆ EDF then is it true to say that PR = EF? Give reason for your answer. June 30, 2021 Category: Chapter 7 - Triangles , Maths , [...]
6. It is given that ∆ ABC ≅ ∆ RPQ. Is it true to say that BC = QR? Why?
30
Jun
6. It is given that ∆ ABC ≅ ∆ RPQ. Is it true to say that BC = QR? Why? 6. It is given that ∆ ABC ≅ ∆ RPQ. Is it true to say that BC = QR? Why? June 30, 2021 Category: Chapter 7 - Triangles , Maths , NCERT Class 9 ,
5. Is it possible to construct a triangle with lengths of its sides as 4 cm, 3 cm and 7 cm? Give reason for your answer.
30
Jun
5. Is it possible to construct a triangle with lengths of its sides as 4 cm, 3 cm and 7 cm? Give reason for your answer. 3 cm and 7 cm? Give reason for your answer. 5. Is it possible to construct a triangle with lengths of its sides as 4 cm June 30, 2021 [...]
4. “If two angles and a side of one triangle are equal to two angles and a side of another triangle, then the two triangles must be congruent.” Is the statement true? Why?
30
Jun
4. “If two angles and a side of one triangle are equal to two angles and a side of another triangle, then the two triangles must be congruent.” Is the statement true? Why? 4. “If two angles and a side of one triangle are equal to two angles and a side of another triangle then [...]