Maths
3. Prove that if a line is drawn parallel to one side of a triangle to intersect the other two sides, then the two sides are divided in the same ratio.
05
Jul
3. Prove that if a line is drawn parallel to one side of a triangle to intersect the other two sides, then the two sides are divided in the same ratio. 3. Prove that if a line is drawn parallel to one side of a triangle to intersect the other two sides then the two [...]
2. It is given that ∆ ABC ~ ∆ EDF such that AB = 5 cm, AC = 7 cm, DF= 15 cm and DE = 12 cm. Find the lengths of the remaining sides of the triangles.
05
Jul
2. It is given that ∆ ABC ~ ∆ EDF such that AB = 5 cm, AC = 7 cm, DF= 15 cm and DE = 12 cm. Find the lengths of the remaining sides of the triangles. 2. It is given that ∆ ABC ~ ∆ EDF such that AB = 5 cm AC [...]
1. In Fig. 6.16, if ∠A = ∠C, AB = 6 cm, BP = 15 cm, AP = 12 cm and CP = 4 cm, then find the lengths of PD and CD.
05
Jul
1. In Fig. 6.16, if ∠A = ∠C, AB = 6 cm, BP = 15 cm, AP = 12 cm and CP = 4 cm, then find the lengths of PD and CD. 1. In Fig. 6.16 AB = 6 cm AP = 12 cm and CP = 4 cm BP = 15 cm if [...]
15. Foot of a 10 m long ladder leaning against a vertical wall is 6 m away from the base of the wall. Find the height of the point on the wall where the top of the ladder reaches.
05
Jul
15. Foot of a 10 m long ladder leaning against a vertical wall is 6 m away from the base of the wall. Find the height of the point on the wall where the top of the ladder reaches. 15. Foot of a 10 m long ladder leaning against a vertical wall is 6 m [...]
14. A 15 metres high tower casts a shadow 24 metres long at a certain time and at the same time, a telephone pole casts a shadow 16 metres long. Find the height of the telephone pole.
05
Jul
14. A 15 metres high tower casts a shadow 24 metres long at a certain time and at the same time, a telephone pole casts a shadow 16 metres long. Find the height of the telephone pole. 14. A 15 metres high tower casts a shadow 24 metres long at a certain time and at [...]
13. In Fig. 6.12, if ∠ACB = ∠CDA, AC = 8 cm and AD = 3 cm, find BD.
05
Jul
13. In Fig. 6.12, if ∠ACB = ∠CDA, AC = 8 cm and AD = 3 cm, find BD. 13. In Fig. 6.12 AC = 8 cm and AD = 3 cm find BD. if ∠ACB = ∠CDA July 5, 2021 Category: Chapter 6 - Triangles , Maths , NCERT Class 10 ,
12. Areas of two similar triangles are 36 cm^2 and 100 cm^2. If the length of a side of the larger triangle is 20 cm, find the length of the corresponding side of the smaller triangle.
05
Jul
12. Areas of two similar triangles are 36 cm^2 and 100 cm^2. If the length of a side of the larger triangle is 20 cm, find the length of the corresponding side of the smaller triangle. 12. Areas of two similar triangles are 36 cm^2 and 100 cm^2. If the length of a side of [...]
11. In a triangle PQR, N is a point on PR such that Q N ⊥ PR . If PN. NR = QN^2,prove that ∠PQR = 90° .
05
Jul
11. In a triangle PQR, N is a point on PR such that Q N ⊥ PR . If PN. NR = QN^2,prove that ∠PQR = 90° . 11. In a triangle PQR N is a point on PR such that Q N ⊥ PR . If PN. NR = QN^2 prove that ∠PQR = [...]
10. Corresponding sides of two similar triangles are in the ratio of 2 : 3. If the area of the smaller triangle is 48 cm^2, find the area of the larger triangle.
05
Jul
10. Corresponding sides of two similar triangles are in the ratio of 2 : 3. If the area of the smaller triangle is 48 cm^2, find the area of the larger triangle. 10. Corresponding sides of two similar triangles are in the ratio of 2 : 3. If the area of the smaller triangle is [...]
9. ABCD is a trapezium in which AB II DC and P and Q are points on AD and BC, respectively such that PQ II DC. If PD = 18 cm, BQ = 35 cm and QC = 15 cm, find AD.
05
Jul
9. ABCD is a trapezium in which AB II DC and P and Q are points on AD and BC, respectively such that PQ II DC. If PD = 18 cm, BQ = 35 cm and QC = 15 cm, find AD. 9. ABCD is a trapezium in which AB II DC and P and [...]