Given the sequence {-1,3,7,11,...,} find the 25th term

c. 6tan80

step-by-step explanation:

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)

it is 32.5

i hope i could u.

umm you say your want to . but you do know that this is the mathematics.  

o~o