If u=15 cm and f=6cm, then find v.

If f=3cm and v=4 cm, then find u.

In given figure, if angleA=angleC , AB= 6 cm, BP = 15 cm, AP = 12 cm and CP= 4 cm, then find the lengths of PD and CD.

In given figure, if angleA=angleC , AB= 6 cm, BP = 15 cm, AP = 12 cm and CP= 4 cm, then find the lengths of PD and CD.

The focal length of a less is given by the formula (1)/(f)=(1)/(u)+(1)/(v) . Make f as the subject of the formula. if u=20cm and v=30, then find f. The following steps are involved in solving the above problem. Arrange them in sequential order. (A) Given (1)/(f)=(1)/(u)+(1)/(v) (B) rArr f=(uv)/(u+v) (C) f=(20xx30)/(20+30)=(600)/(50)=12 cm. (D) rArr (1)/(f)=(v+u)/(uv)

In the given figure AD is the bisector of angleA . If BD= 4 cm , DC = 3 cm and AB = 6cm . Find AC.

In the adjoining figure if DP=5cm , DE=15cm , DQ=6cm and QF=18cm , then