NCERT Class 10

10. D is a point on side QR of triangle PQR such that PD QR. Will it be correct to say that triangle PQD ~ triangle RPD? Why? 10. D is a point on side QR of triangle PQR such that PD QR. Will it be correct to say that triangle PQD ~ triangle RPD? [...]

9. The ratio of the corresponding altitudes of two similar triangles is 3 / 5. Is it correct to say that ratio of their areas is 6 / 5? Why? 9. The ratio of the corresponding altitudes of two similar triangles is 3 / 5. Is it correct to say that ratio of their areas [...]

8. If in two right triangles, one of the acute angles of one triangle is equal to an acute angle of the other triangle, can you say that the two triangles will be similar? Why? 8. If in two right triangles can you say that the two triangles will be similar? Why? one of the [...]

7. Two sides and the perimeter of one triangle are respectively three times the corresponding sides and the perimeter of the other triangle. Are the two triangles similar? Why? 7. Two sides and the perimeter of one triangle are respectively three times the corresponding sides and the perimeter of the other triangle. Are the two [...]

6. Is the following statement true? Why? “Two quadrilaterals are similar, if their corresponding angles are equal” 6. Is the following statement true? Why? “Two quadrilaterals are similar if their corresponding angles are equal” July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 ,

5. In triangles PQR and MST, angle P = 55°, angle Q = 25°, angle M = 100° and angle S = 25°. Is angle QPR ~ angle TSM? Why? 5. In triangles PQR and MST angle M = 100° and angle S = 25°. Is angle QPR ~ angle TSM? Why? angle P = [...]

4. In Fig 6.4, BD and CE intersect each other at the point P. Is triangle PBC ~ triangle PDE? Why? 4. In Fig 6.4 BD and CE intersect each other at the point P. Is triangle PBC ~ triangle PDE? Why? July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class [...]

3. A and B are respectively the points on the sides PQ and PR of a triangle PQR such that PQ = 12.5 cm, PA = 5 cm, BR= 6 cm and PB = 4 cm. Is AB II QR? Give reasons for your answer. 3. A and B are respectively the points on the [...]

2. It is given that triangle DEF ~ triangle RPQ. Is it true to say that angle D = angle R and angle F = angle P? Why? 2. It is given that triangle DEF ~ triangle RPQ. Is it true to say that angle D = angle R and angle F = angle P? [...]

1. Is the triangle with sides 25 cm, 5 cm and 24 cm a right triangle? Give reasons for your answer. 1. Is the triangle with sides 25 cm 5 cm and 24 cm a right triangle? Give reasons for your answer. July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class [...]