CBSE X TRIANGLES

D and E are respectively the midpoints on the sides AB and AC of a triangle ABC and BC = 6 cm. If DE || BC, then the length of DE (in cm) is

• 2.5

• 3

• 5

• 6

Diagonals of a trapezium PQRS intersect each other at the point O, PQ || RS and PQ = 3 RS, Then the ratio of areas of triangles POQ and ROS is:

• 1:9

• 9:1

• 3:1

• 1:3

In the figure if ∠ACB = ∠CDA, AC = 8 cm and AD = 3 cm, find BD.

• 53/3 cm

• 55/3 cm

• 64/3 cm

• 35/7 cm

If ABCD is parallelogram, P is a point on side BC and DP when produced meets AB produced at L, then select the correct option

• DP/BL = DC/PL

• DP/PL = DC/BL

• DP/PL = BL/DC

• DP/PL = AB/DC

The length of altitude of an equilateral triangle of side 8cm is

• √3 cm

• 2√3 cm

• 3√3 cm

• 4√3 cm