把下面的图形分成我们学过的图形,想想你有几种方法?(单位:cm))x.E4K5r6~7W3D1O'J4t
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(1) :Z4o3n+b:J(U形+8t-u)V*u(C0e)`8b形)x.E4K5r6~7W3D1O'J4t
(2) 0o8o7S8a(E/x(}形+5?*V+o;n8s'C8g,n9i形)x.E4K5r6~7W3D1O'J4t
(3) 7A6S6r.w-H:^形+2r8];p5{:c3m0b+~8Y形)x.E4K5r6~7W3D1O'J4t