1~/w-?0j(j*[-b;n;k,h
1~/w-?0j(j*[-b;n;k,h
1、图中有4O1].D.l'd,f,e7m个锐角，(N.R,o4}5C6U个直角，9d8S0s2m*n)N;Z;~1C)H个钝角。1~/w-?0j(j*[-b;n;k,h
2、图中有:B'F9J-V.i(K7q;U)h0O:C个等边三角形，-{(N6C(b'c.w2|'F8s6U*D-E-J/_个等腰三角形，,q(Y:C8y-U*t;C)c*T个直角三角形，+`:W:v/R.a+q;\(x0i7T/a8J*p个等腰直角三角形。1~/w-?0j(j*[-b;n;k,h
3、图中有+Q*\7S2]+|0q4{2y3`*r+L6t:I4]*D个正方形，5f2['q1}个长方形，'m6J9x个等腰三角形，(H5O7s4a-Q5C)x个四边形。1~/w-?0j(j*[-b;n;k,h
4、图中共有5l*s7r8|0{5a个点。1~/w-?0j(j*[-b;n;k,h