Chapter 6 – Triangles
5. In Fig. 6.10, if AB II DC and AC and PQ intersect each other at the point O, prove that OA. CQ = OC . AP.
05
Jul
5. In Fig. 6.10, if AB II DC and AC and PQ intersect each other at the point O, prove that OA. CQ = OC . AP. 5. In Fig. 6.10 if AB II DC and AC and PQ intersect each other at the point O prove that OA. CQ = OC . AP. July [...]
4. Diagonals of a trapezium PQRS intersect each other at the point O, PQ II RS and PQ = 3 RS. Find the ratio of the areas of triangles POQ and ROS.
05
Jul
4. Diagonals of a trapezium PQRS intersect each other at the point O, PQ II RS and PQ = 3 RS. Find the ratio of the areas of triangles POQ and ROS. 4. Diagonals of a trapezium PQRS intersect each other at the point O PQ II RS and PQ = 3 RS. Find the [...]
3. In Fig. 6.9, if angle 1 = angle 2 and triangle NSQ triangle MTR, then prove that triangle PTS ~ triangle PRQ.
05
Jul
3. In Fig. 6.9, if angle 1 = angle 2 and triangle NSQ triangle MTR, then prove that triangle PTS ~ triangle PRQ. 3. In Fig. 6.9 if angle 1 = angle 2 and triangle NSQ triangle MTR then prove that triangle PTS ~ triangle PRQ. July 5, 2021 Category: Chapter 6 - Triangles , [...]
2. Find the value of x for which DE II AB in Fig. 6.8.
05
Jul
2. Find the value of x for which DE II AB in Fig. 6.8. 2. Find the value of x for which DE II AB in Fig. 6.8. July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 ,
1. In a ∆ PQR, PR^2 – PQ^2 = QR^2 and M is a point on side PR such that QM ⊥ PR. Prove that QM^2 = PM × MR.
05
Jul
1. In a ∆ PQR, PR^2 – PQ^2 = QR^2 and M is a point on side PR such that QM ⊥ PR. Prove that QM^2 = PM × MR. 1. In a ∆ PQR PR^2 – PQ^2 = QR^2 and M is a point on side PR such that QM ⊥ PR. Prove that [...]
12. Is it true to say that if in two triangles, an angle of one triangle is equal to an angle of another triangle and two sides of one triangle are proportional to the two sides of the other triangle, then the triangles are similar? Give reasons for your answer.
05
Jul
12. Is it true to say that if in two triangles, an angle of one triangle is equal to an angle of another triangle and two sides of one triangle are proportional to the two sides of the other triangle, then the triangles are similar? Give reasons for your answer. 12. Is it true to [...]
11. In Fig. 6.5, if angle D = angle C, then is it true that triangle ADE ~ triangle ACB? Why?
05
Jul
11. In Fig. 6.5, if angle D = angle C, then is it true that triangle ADE ~ triangle ACB? Why? 11. In Fig. 6.5 if angle D = angle C then is it true that triangle ADE ~ triangle ACB? Why? July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class [...]
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?
05
Jul
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?
05
Jul
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?
05
Jul
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 [...]