If A={c, a,k, e} and U={a, b,c, d,e, f,g, h,i, j,k, l,m, n,o, p,q, r,s, t,u, v,w, x,y, z}, find A′.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

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

Find the missing dimension extra points