五年级求阴影面积题http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%C7%F3%D2%F5%D3%B0%B2%BF%B7%D6%B5%C4%C3%E6%BB%FD&in=807&cl=2&cm=1&sc=0&lm=-1&pn=175&rn=1&di=199594640&ln=427&fr=&ic=0&s=0上边长是6cm5cm
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/09 20:25:56
![五年级求阴影面积题http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%C7%F3%D2%F5%D3%B0%B2%BF%B7%D6%B5%C4%C3%E6%BB%FD&in=807&cl=2&cm=1&sc=0&lm=-1&pn=175&rn=1&di=199594640&ln=427&fr=&ic=0&s=0上边长是6cm5cm](/uploads/image/z/1100170-10-0.jpg?t=%E4%BA%94%E5%B9%B4%E7%BA%A7%E6%B1%82%E9%98%B4%E5%BD%B1%E9%9D%A2%E7%A7%AF%E9%A2%98http%3A%2F%2Fimage.baidu.com%2Fi%3Fct%3D503316480%26z%3D0%26tn%3Dbaiduimagedetail%26word%3D%25C7%25F3%25D2%25F5%25D3%25B0%25B2%25BF%25B7%25D6%25B5%25C4%25C3%25E6%25BB%25FD%26in%3D807%26cl%3D2%26cm%3D1%26sc%3D0%26lm%3D-1%26pn%3D175%26rn%3D1%26di%3D199594640%26ln%3D427%26fr%3D%26ic%3D0%26s%3D0%E4%B8%8A%E8%BE%B9%E9%95%BF%E6%98%AF6cm5cm)
五年级求阴影面积题http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%C7%F3%D2%F5%D3%B0%B2%BF%B7%D6%B5%C4%C3%E6%BB%FD&in=807&cl=2&cm=1&sc=0&lm=-1&pn=175&rn=1&di=199594640&ln=427&fr=&ic=0&s=0上边长是6cm5cm
五年级求阴影面积题
http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%C7%F3%D2%F5%D3%B0%B2%BF%B7%D6%B5%C4%C3%E6%BB%FD&in=807&cl=2&cm=1&sc=0&lm=-1&pn=175&rn=1&di=199594640&ln=427&fr=&ic=0&s=0上边长是6cm5cm
五年级求阴影面积题http://image.baidu.com/i?ct=503316480&z=0&tn=baiduimagedetail&word=%C7%F3%D2%F5%D3%B0%B2%BF%B7%D6%B5%C4%C3%E6%BB%FD&in=807&cl=2&cm=1&sc=0&lm=-1&pn=175&rn=1&di=199594640&ln=427&fr=&ic=0&s=0上边长是6cm5cm
阴影面积等于两个正方形面积减去三个三角形面积.
即:阴影面积= 6×6 + 5×5 - 6×(6-5)÷2 - 6×(6+5)÷2 - 5×5÷2 =12.5(cm²)
6*6+5*5-6*(6+5)/2-5*5/2-6*(6-5)/2
=36+25-33-12.5-3
=12.5(cm2)