Solve for r.
s=2πrh
a. s/2π=r
b.2πsh=r
c. s/2πh=r
d. s2=r

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

Determine whether triangle tjd is congruent to triangle sek  givent (-4,-2), j (0,5), d (1,-1), s (-1,3), e (3,10), k (4,4)and explain the reason.  select one: a. yes, by sssb. no, by aasc. no, by asad. yes, by sas

In the rectangle below ac=30 units what is de