Find the measure of DCB, if AB || CD and AD || BC in the given figure​

In the given figure, ∆ABC has points D and F in AC andpoint E in BC such that DE ∥ AB and EF ∥ BD. If CF = 4 cmand AC = 9 cm, what is the length of DC?

In ΔABC, AC = 15 cm and DE || BC. If ADDB=21, then EC = ______.

In the given figure A, B, C and D are collinear points. If AC = 3 cm, BD = 4 cm andBC = 2 cm, then AD is

The measure of ∠ACD in a circle is 90°. B is a point on the circle such that AB = BD. E is a point on AC such that ∠AEB = 90°. If AE = 5 cm and CE = 2 cm then find the length of CD.

Question No 48.In right ΔABC, where ∠C is the right angle, point D lies on side AB, and point E lies on side BC such that AC = CD, DE = EB, and the ratio AC : DE = 4 : 3. What is the ratio AD : DB?