find the surface area of the "unrolled" cylinder where a=4cm and b=10cm leave your answer in terms of pi​

What is the first quartile of the data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?