计算下列图形的面积。(单位:米)+U:B2T2a:J1f*d+i2L
(1)(2)(3)(4)+U:B2T2a:J1f*d+i2L
(1)
算式:提示.B0\7K+U:B2T2a:J1f*d+i2L
答:面积是/G3h7h1q/^7F+\7R9m(h1T7y平方厘米。+U:B2T2a:J1f*d+i2L
(2)
算式:提示,|3R/\7@6M9^5z+U:B2T2a:J1f*d+i2L
答:面积是;`:h'n平方厘米。+U:B2T2a:J1f*d+i2L
(3)
算式:提示+A4j6h;Y:R7g3}'~;w0]6U4@,H9N*P+U:B2T2a:J1f*d+i2L
答:面积是4Q;e9k;Z7K)G1Y:H平方厘米。+U:B2T2a:J1f*d+i2L
(4)
算式:提示,[)g*?.s/o)m3n'T5M9x+U:B2T2a:J1f*d+i2L
答:面积是'l)i+}8j*b,`.c+M1i-|0^)n平方厘米。+U:B2T2a:J1f*d+i2L