In the figure, if B1, B2, B3,…... and A1,A2, A3,….. have been marked at equal distances. In what ratio C divides AB?

8

If PQ=28cm, then find the perimeter of ΔPLM.

10

In the ΔABC, D and E are points on side AB and AC respectively such that DE BC. If AE=2cm, AD=3cm and BD=4.5cm, then find CE.

12

s 13

If x = 2sin²Ɵ and y = 2cos²Ɵ + 1, then find x + y.