trig
posted by chris .
i have to find a & c, b=2.489*10 to the nineth power and i have one degree 25

restate your question. I don't understand.
is this a right triangle?
"i have one degree 25" What does this mean?
side b = 2.489 * 10^9 ? or 2,489,000,000?
post question exactly as written from your book.