Find `m angleC` in fig 3.33 if `AB||DC`

Find m angleC in the figure3.33 if AB||DC.

Find m/_C in fig 3.33 if AB||DC

Find mangleC .If AB||DC.

The focus of a parabolic mirror as shown in Fig 11.33 is at a distance of 5 cm from its vertex. If the mirror is 45 cm deep, find the distance AB (Fig 11.33) .

ABCD is a quadrilateral in which AB||DC and AD=BC. Prove that angleA=angleB and angleC=angleD .