math
posted by rosland .
Two Rhombuses of the equal length and width of 10 inches each and height of 7 inches are drawn inside a quartercircle of radius 18 inches as shown in the figure below.
(a) find the perimeter of each of the Rhombuses.
(b) Find the perimeter of the quartercircle. (Use 3.14 for Pi).
(c) Find the area of each of the Rhombuses.
(d) Find the area of the quarter circle. (Pi = 3.14).
(e) Find the area of the region inside the quartercircle but outside the two Rhombuses.

Now post your solutions and specific difficulties. I am not about to do the assignment for you. I already took the course.
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