Mathematics
In the given figure, AB ∥ CD and OA = (2x + 4) cm, OB = (9x − 21) cm, OC = (2x − 1) cm and OD = 3 cm. Then x equals:
2.1
3
4
6
Related Questions
The ratio of the corresponding sides of two similar triangles is 1 : 3. The ratio of their corresponding heights is :
1 : 3
1 : 9
3 : 1
9 : 1
If in triangles ABC and DEF, ∠A = ∠E = 40°, AB : ED = AC : EF and ∠F = 65°, then ∠B is equal to :
35°
65°
75°
85°
The shadow of a 5 m long stick is 2 m long. At the same time the length of the shadow of a 12.5 m high tree is:
3 m
3.5 m
4.5 m
5 m