This jewelry box has the shape of a regular pentagon. it is packaged in a rectangular box as shown here. the box uses two pairs of congruent right triangles made of foam to fill its four corners. find the measure of the foam angle marked.

2nd one in the first row is correct

(8+64)^2= 5184 < answer

step-by-step explanation:

2^3 = 8

4^3= 64

(8+64)^2 = 5184

step-by-step explanation:

let pq = qr = rs = x, and xz = y and zu = z.

if the horizontal lines are parallel, then corresponding segments are in proportion:

substitute:

therefore 3 = y = z.

xu = y + z → xu = 3 + 3 = 6