Maths
8. In Fig. 6.11, if DE II BC, find the ratio of ar (ADE) and ar (DECB).
05
Jul
8. In Fig. 6.11, if DE II BC, find the ratio of ar (ADE) and ar (DECB). 8. In Fig. 6.11 find the ratio of ar (ADE) and ar (DECB). if DE II BC July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 ,
7. If ∆ ABC ~ ∆ DEF, AB = 4 cm, DE = 6 cm, EF = 9 cm and FD = 12 cm, find the perimeter of ∆ ABC.
05
Jul
7. If ∆ ABC ~ ∆ DEF, AB = 4 cm, DE = 6 cm, EF = 9 cm and FD = 12 cm, find the perimeter of ∆ ABC. 7. If ∆ ABC ~ ∆ DEF AB = 4 cm DE = 6 cm EF = 9 cm and FD = 12 cm find [...]
6. Find the altitude of an equilateral triangle of side 8 cm.
05
Jul
6. Find the altitude of an equilateral triangle of side 8 cm. 6. Find the altitude of an equilateral triangle of side 8 cm. July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 ,
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 [...]