15. a) Write the given in the following figure. А A
(C)
2cm
30°
T
0
b) What is the nature of the triangle ATO? Justify
your answer.
c) What must be the lengths of TA and TO?​

If the value of cos330°is√3/2 then find cos 165°.

Factor and solve to find roots x squared -x - 90 =0

Aresearch study is done to find the average age of all u. s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample