Attachment:
brick.png [ 4.54 KiB | Viewed 64 times ]
(1) The radius of the semicircle described by arc AB is 4.
(2) The perimeter of the square ABCD is 32.
brick.png [ 4.54 KiB | Viewed 64 times ]
(1) The radius of the semicircle described by arc AB is 4.
(2) The perimeter of the square ABCD is 32.