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董谦昭2092小学五年级数学题,求两个三角形阴影面积?
崔味梵17396143496 ______ 梯形高:3x4 ÷5=2.4(m),空白三角形面积:3x4÷2=6(平方米) 梯形面积:(5+8)x2.4÷2=15.6(平方米),阴影面积:15.6-6=9.6(平方米)

董谦昭2092五年级数学算一算阴影图形面积 -
崔味梵17396143496 ______ 大正方形面积:40*40=1600 小正方形面积:30*30=900 空白的梯形面积:(40-30+40)*40÷2=1000 空白的三角形面积:(40+30)*30÷2=1050 阴影图形面积:1600+900-1000-1050=450

董谦昭2092求三角形部分阴影面积(五年级)
崔味梵17396143496 ______ 阴影面积=s1+s2=2s2=(4*5÷2-4*2÷2)*2 =12

董谦昭2092五年级求阴影部分面积 -
崔味梵17396143496 ______ (30+50)*40÷2=1600(平方厘米) 40*2=80(平方厘米) 1600-80=1520(平方厘米) 本题已解答,如果满意 请点击右下角采纳答案

董谦昭2092五年级 求阴影面积.小学五年级的题.谢谢了各位. -
崔味梵17396143496 ______ 6*8÷2 - 8*4÷2 =24 - 16 =8(平方厘米)

董谦昭2092五年级 求阴影面积 -
崔味梵17396143496 ______ 解:阴影部分的面积:10.5÷4.5*8=56/3平方分米

董谦昭2092求阴影部分的面积(小学五年级数学题) -
崔味梵17396143496 ______ 左上方的梯形加斜着的平行四边形减下面的白的三角形 (8+1)*20÷2+20*8-20*7÷2 =90+160-70 =180

董谦昭2092五年级同步练习求阴影部分的面积 -
崔味梵17396143496 ______ 总面积5*5+4*4=25+16=41白梯形面积 (5+1)*5÷2=15白三角形面积 (5+4)*4÷2=18阴影面积=41-15-18=8

董谦昭2092小学五年级求阴影部分的面积谢谢帮忙,解不开了.
崔味梵17396143496 ______ 1、根据上面三角形面积求出梯形的上底 5*6÷2÷5*2=6 梯形面积:(6+4)*3÷2=15平方厘米 2、三个三角形的底的和是8,高都是4,则阴影面积:8*4÷2=16平方厘米

董谦昭20922、3题求阴影部分的面积.(五年级) -
崔味梵17396143496 ______ 简单,我是六年级,保证对,(6+4)*6-(6+4)*6\2-(2+6)*4/2=143、8*5-(2+5)*8/2-3*3/2=7.5